CCNA 2 R&S Essentials Practice Final Skills Assessment – PT 2014

CCNA Routing and Switching
Routing and Switching Essentials

Practice Skills Assessment – Packet Tracer

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2. Do not close Packet Tracer when you are done. It will close automatically.
3. Click the Submit Assessment button in the browser window to submit your work.

Introduction

In this practice skills assessment, you will configure the Our Town network with single-area OSPFv2. In addition, you will configure router-on-a-stick routing between VLANs. You will also implement NAT, DHCP and access lists.

All IOS device configurations should be completed from a direct terminal connection to the device console.
Some values that are required to complete the configurations have not been given to you. In those cases, create the values that you need to complete the requirements. These values may include certain IP addresses, passwords, interface descriptions, banner text, and other values.
For the sake of time, many repetitive but important configuration tasks have been omitted from this activity. Many of these tasks, especially those related to device security, are essential elements of a network configuration. The intent of this activity is not to diminish the importance of full device configurations.

You will practice and be assessed on the following skills:

• Configuration of initial device settings
• IPv4 address assignment
• Configuration and addressing of router interfaces
• Configuration of a router as a DHCP server
• Implementation of static and dynamic NAT
• Configuration of the single-area OSPFv2 routing protocol
• Configuration of a default route and static summary routes
• Configuration of VLANs and trunks
• Configuration of routing between VLANs
• Configuration of ACL to limit device access

You are required to configure the following:

Police:

• Configuration of initial router settings
• Interface configuration and IPv4 addressing
• Configuration of DHCP
• Configuration of multiarea OSPFv2
• Configuration of routing between VLANs

Central:

• Interface configuration and IPv4 addressing
• Configuration of multiarea OSPFv2
• Configuration of IPv4 route summarization
• Configuration and propagation of a default route
• Configuration of static summary routes
• Configuration of static and dynamic NAT
• Configuration of ACLs

Fire:

• Interface configuration and IPv4 addressing
• Configuration of multiarea OSPFv2
• Configuration of a static summary route

Police-SW1:

• Configuration of VLANs
• Assignment of switch ports to VLANs
• Configuration of trunking
• Configuration of unused switch ports

Police-SW2:

• Configuration of VLANs
• Assignment of switch ports to VLANs
• Configuration of trunking
• Configuration of unused switch ports

Internal PC hosts:

• Configuration as DHCP clients

Addressing Tables

Note: You are provided with the networks that interfaces should be configured on. Unless you are told to do differently in the detailed instructions below, you are free to choose the host addresses to assign.

Addressing Table:

Device	Interface	Network	Comments
Police	S0/0/0	192.168.10.104/30	any address in the network
	Gi0/0.45	192.168.45.0/24	first address in the network
	Gi0/0.47	192.168.47.0/24	first address in the network
	Gi0/0.101	192.168.101.0/24	first address in the network
Central	S0/0/0	192.168.10.104/30	any address in the network
	S0/0/1	192.168.10.112/30	any address in the network
	S0/1/0	198.51.100.0/28	first address in the network
	Gi0/0	192.168.18.40/29	first address in the network
Fire	S0/0/0	192.168.10.124/30	second address in the network
	S0/0/1	192.168.10.112/30	any address in the network
Police-SW1	VLAN 101	192.168.101.0/24	any address in the network
Police-SW2	VLAN 101	192.168.101.0/24	any address in the network

Pre-configured addresses for reference:

Device	Address
Town Server	192.168.18.46/29
NetAdmin Host	203.0.113.18
Outside Host	203.0.113.128
Public Server	209.165.201.235
S3 Host	192.168.200.10/24
S6 Host	192.168.201.10/24
S5 Host	192.168.202.10/24

VLAN Table:

VLAN Number	VLAN Name	VLAN Network	Device:Port
45	HR	192.168.45.0/24	Police-SW1: Fa0/10 Police-SW2: Fa0/3
47	records	192.168.47.0/24	Police-SW1: Fa0/15 Police-SW2: Fa0/21
101	comm	192.168.101.0/24	SVI

Instructions

All configurations must be performed through a direct terminal connection to the device consoles.

Step 1: Determine the Addresses to Assign

Determine the IP addresses that you will use for the required interfaces on the three routers and two switches. Use the information in the Addressing Table and follow the guidelines below:

• Assign the first IP addresses in the networks that are provided in the Addressing Table to the LAN interfaces.
• Assign the first address in the Central subnet to the interface that is connected to the Internet.
• Assign any valid host address in the networks that are provided in the Addressing Table to the serial interfaces.
• The host PCs will receive IP addresses over DHCP.

Step 2: Configure Police

• Configure Police with the following:
• Configure the router host name: PoliceDept  

Router(config)# hostname PoliceDept

• Prevent the router from attempting to resolve command line entries to IP addresses.

PoliceDept(config)# no ip domain-lookup 

• Protect privileged EXEC mode from unauthorized access with the MD5 encrypted password.

PoliceDept(config)# enable secret [password]

• Prevent device status messages from interrupting command line entries at the device console.

PoliceDept(config)# line con 0

PoliceDept(config-line)# logging synchronous

• Secure the router console and terminal lines.

PoliceDept(config)# line console 0

password [password]

login

PoliceDept(config)# line vty 0 4

password [password]

login

• Prevent all passwords from being viewed in clear text in the device configuration file.

PoliceDept(config)# service password-encryption

• Configure a message-of-the-day banner.

PoliceDept(config)# banner motd “message-of-the-day”

Step 3: Configure the Router Physical Interfaces

Configure the interfaces of the routers for full connectivity with the following:

• IP addresses as shown in the addressing table.
• Describe the operational Police serial interface. The Police Ethernet interfaces will be configured at the end of this assessment.
• DCE settings where appropriate. Use a rate of 128000.

PoliceDept(config)# interface Serial0/0/0
PoliceDept(config-if)#bandwidth 128
PoliceDept(config-if)#ip address 192.168.10.105 255.255.255.252
PoliceDept(config-if)#description Police and Central
PoliceDept(config-if)#clock rate 128000
PoliceDept(config-if)#no shutdown

Central(config)# interface Serial0/0/0
Central(config-if)#bandwidth 128
Central(config-if)#ip address 192.168.10.106 255.255.255.252
Central(config-if)#no shutdown

Central(config)# interface Serial0/0/1
Central(config-if)#bandwidth 128
Central(config-if)#ip address 192.168.10.114 255.255.255.252
Central(config-if)#clock rate 128000
Central(config-if)#no shutdown

Central(config)# interface g0/0
Central(config-if)#ip address 192.168.18.41 255.255.255.248
Central(config-if)#no shutdown

Central(config)# interface Serial0/1/0
Central(config-if)#ip address 198.51.100.1 255.255.255.240
Central(config-if)#no shutdown

Fire(config)# interface Serial0/0/1
Fire(config-if)#bandwidth 128
Fire(config-if)#ip address 198.51.100.1 255.255.255.240
Fire(config-if)#no shutdown

Step 4: Configure static and default routing

Configure the following static routes:

• Manually configure default routes to the Internet. Use the exit interface argument. All hosts on the internal LANs and School Network networks should be able to reach the Internet.

PoliceDept(config)#ip route 0.0.0.0 0.0.0.0 s0/0/0

Central(config)#ip route 0.0.0.0 0.0.0.0 s0/1/0

Fire(config)#ip route 0.0.0.0 0.0.0.0 s0/0/1

• It has been decided to use static routes to reach the branch networks that are connected to Fire. Use a single summary to represent the branch networks in the most efficient way possible. Configure the summary static route onCentral and Fire using the exit interface argument.

Central(config)#ip route 192.168.200.0 255.255.252.0 s0/0/1

Fire(config)#ip route 192.168.200.0 255.255.252.0 s0/0/0

Step 5: Configure OSPF Routing

Configure single-area OSPFv2 to route between all internal networks. The branch networks are not routed with OSPFv2.

• Use a process ID of 10.The routers should be configured in area 0.
• Use the correct inverse masks for all network statements. Do not use quad zero masks (0.0.0.0).

Step 6: Customize single-area OSPFv2

Customize single-area OSPFv2 by performing the following configuration tasks:

a. Set the bandwidth of the serial interfaces to 128 kb/s.

b. Configure OSPF router IDs as follows:

• Police: 1.1.1.1
• Central: 2.2.2.2
• Fire: 3.3.3.3

c. Configure the OSPF cost of the link between Police and Central to 7500.

d. Prevent routing updates from being sent out of any of the LAN interfaces that are routed with OSPFv2. Do not use the default keyword in the commands you use to do this.

Configuration step 5 and step 6

PoliceDept(config)#router ospf 10

PoliceDept(config-router)#router-id 1.1.1.1

PoliceDept(config-router)#network 192.168.10.104 0.0.0.3 area 0
PoliceDept(config-router)#network 192.168.45.0 0.0.0.255 area 0
PoliceDept(config-router)#network 192.168.47.0 0.0.0.255 area 0
PoliceDept(config-router)#network 192.168.101.0 0.0.0.255 area 0

PoliceDept(config-router)#passive-interface g0/0.45
PoliceDept(config-router)#passive-interface g0/0.47
PoliceDept(config-router)#passive-interface g0/0.101

PoliceDept(config)#interface s0/0/0
PoliceDept(config-if)#bandwidth 128
PoliceDept(config-if)#ip ospf cost 7500

Central(config)#router ospf 10
Central(config-router)#router-id 2.2.2.2
Central(config-router)#network 192.168.10.104 0.0.0.3 area 0
Central(config-router)#network 192.168.10.112 0.0.0.3 area 0
Central(config-router)#network 192.168.18.40 0.0.0.7 area 0
Central(config-router)#passive-interface g0/0

Central(config)#interface s0/0/0
Central(config-if)#bandwidth 128
Central(config-if)#ip ospf cost 7500

Central(config)#interface s0/0/1
Central(config-if)#bandwidth 128

Fire(config)#router ospf 10
Fire(config-router)#router-id 3.3.3.3
Fire(config-router)#network 192.168.10.112 0.0.0.3 area 0

Fire(config)#interface s0/0/1
Fire(config-if)#bandwidth 128

Step 7: Configure VLANs and Trunking

Configure Police-SW1 and Police-SW2 with VLANs and trunk ports as follows:

• Refer to the VLAN table above for the VLAN numbers and names that should be configured on both switches.
• Configure names for the VLANs. The VLAN names must be configured to match the names in the VLAN Table exactly (case and spelling).

On Police-SW1

Police-SW1(config)#vlan 45
Police-SW1(config-vlan)#name HR

Police-SW1(config)#vlan 47
Police-SW1(config-vlan)#name records

Police-SW1(config)#vlan 101
Police-SW1(config-vlan)#name comm

On Police-SW2

Police-SW2(config)#vlan 45
Police-SW2(config-vlan)#name HR

Police-SW2(config)#vlan 47
Police-SW2(config-vlan)#name records

Police-SW2(config)#vlan 101
Police-SW2(config-vlan)#name comm

• Configure the appropriate ports that link the switches and Police with the router as functioning trunk ports.

Police-SW1(config)#int g1/1
Police-SW1(config-if)#switchport mode trunk
Police-SW1(config-if)#no shutdown

Police-SW1(config)#int g1/2
Police-SW1(config-if)#switchport mode trunk
Police-SW1(config-if)#no shutdown

Police-SW2(config)#int g1/1
Police-SW2(config-if)#switchport mode trunk
Police-SW2(config-if)#no shutdown

• Assign the switch ports shown in the table as access ports in the VLANs as indicated in the VLAN Table.

Police-SW1(config)#int fa0/10
Police-SW1(config-if)#switchport mode access
Police-SW1(config-if)#switchport access vlan 45
Police-SW1(config-if)#exit

Police-SW1(config)#int fa0/15
Police-SW1(config-if)#switchport mode access
Police-SW1(config-if)#switchport access vlan 47
Police-SW1(config-if)#exit

Police-SW2(config)#int fa0/3
Police-SW2(config-if)#switchport mode access
Police-SW2(config-if)#switchport access vlan 45
Police-SW2(config-if)#exit

Police-SW2(config)#int fa0/21
Police-SW2(config-if)#switchport mode access
Police-SW2(config-if)#switchport access vlan 47
Police-SW2(config-if)#exit

• Address VLAN 101 on the network indicated in the VLAN Table. Note that the first address in this network will be assigned to the router in a later step in this assessment. The management interfaces of both switches should configured to be reachable by hosts on other networks.

Police-SW1(config)#ip default-gateway 192.168.101.1
Police-SW1(config)#interface vlan 101
Police-SW1(config-if)#ip address 192.168.101.2 255.255.255.0

Police-SW2(config)#ip default-gateway 192.168.101.1
Police-SW2(config)#interface vlan 101
Police-SW2(config-if)#ip address 192.168.101.3 255.255.255.0

• Configure all unused switch ports as access ports, and shutdown the unused ports.

Police-SW1(config)#int range fa0/1-9, fa0/11-14, fa0/16-24
Police-SW1(config-if-range)#switchport mode access 
Police-SW1(config-if-range)#shutdown

Police-SW2(config)#int range fa0/1-2, fa0/4-20, fa0/22-24
Police-SW2(config-if-range)#switchport mode access 
Police-SW2(config-if-range)#shutdown

Step 8: Configure DHCP

Police should be configured as a DHCP server that provides addressing to the hosts attached to Police-SW1 and Police-SW2. The requirements are as follows:

• Use VLAN45 and VLAN47 as the pool names. Note that the pool names must match the names given here exactly, all capital letters and exact spelling.
• Addresses .1 to .20 should be reserved for static assignment from each pool.

• The first address in each network will be assigned to the router interface attached to the networks as shown in the addressing table.
• Use a DNS server address of 192.168.18.100. This server has not yet been added to the network, but the address must be configured.
• Ensure that hosts in each LAN are able to communicate with hosts on remote networks.

PoliceDept(config)#ip dhcp excluded-address 192.168.45.1 192.168.45.20
PoliceDept(config)#ip dhcp excluded-address 192.168.47.1 192.168.47.20

PoliceDept(config)#ip dhcp pool VLAN45
PoliceDept(dhcp-config)#network 192.168.45.0 255.255.255.0
PoliceDept(dhcp-config)#default-router 192.168.45.1
PoliceDept(dhcp-config)#dns-server 192.168.18.100

PoliceDept(config)#ip dhcp pool VLAN47
PoliceDept(dhcp-config)#network 192.168.47.0 255.255.255.0
PoliceDept(dhcp-config)#default-router 192.168.47.1
PoliceDept(dhcp-config)#dns-server 192.168.18.100

*Set Clients to DHCP*

PC1, PC2, PC3, PC4

Step 9: Configure NAT

Configure NAT to translate internal private addresses into public addresses for the Internet. The requirements are:

a. Configure static NAT to the Town Server.

• Translate the internal address of the server to the address 198.51.100.14.
• Configure the correct interfaces to perform this NAT translation.

Central(config)#ip nat inside source static 192.168.18.46 198.51.100.14
Central(config)#interface g0/0
Central(config-if)#ip nat inside

Central(config)#interface s0/1/0
Central(config-if)#ip nat outside

b.Configure dynamic NAT (not NAT with overload, or PAT).

• Use the addresses remaining in the public address subnet of 198.51.100.0/28. The first two addresses in the subnet have already been assigned to the Central and ISP serial interfaces. Also, another address has already been used in the static mapping in the step above.
• Use a pool name of INTERNET. Note that the pool name must match this name exactly, in spelling and capitalization.
• Hosts on each of the internal LANs shown in the topology and on all of the branch networks should be permitted to use the NAT addresses to access the Internet.
• Use a source list number of 1.
• Your source list should consist of three entries, one each for the LANs and one for the branch networks.

BY Boogie

ip nat pool INTERNET 198.51.100.3 198.51.100.13 netmask 255.255.255.240
ip nat inside source list 1 pool INTERNET
ip nat inside source static 192.168.18.46 198.51.100.14
ip access-list standard 1
permit 192.168.45.0 0.0.0.255
permit 192.168.47.0 0.0.0.255
permit 192.168.200.0 0.0.3.255

Step 10: Configure Access Control Lists

You will configure two access control lists to limit device access on Central. You should use the any and host keywords in the ACL statements as required.  The ACL requirements are:

a. Restrict access to the vty lines on Central:

• Create a named standard ACL using the name MANAGE. Be sure that you use this name exactly as it appears in these instructions (case and spelling).
• Allow only the  NetAdmin Host to access the vty lines of Central.
• No other Internet hosts (including Internet hosts not visible in the topology) should be able to access the vty lines of Central.
• Your solution should consist of a single ACL statement.

b.Allow outside access to the Town Server while controlling other traffic from the outside. Create the ACL as directed below:

• Use access list number 101.
• First, allow NetAdmin Host full access to all network hosts and devices.
• Then, allow outside hosts to access the Town Server over HTTP only.
• Allow traffic that is in response to data requests from the internal and School Network hosts to enter the network.
• Add a statement so that counts of all denied traffic will be shown in the show access-lists command output.
• Your ACL should have only four statements.

Your ACL should be placed in the most efficient location possible to conserve network bandwidth and device processing resources.

Step 11: Configure Router-on-a-Stick Inter-VLAN Routing.

Configure Police to provide routing between the VLANs configured on the switches. As follows:

• Use the VLAN numbers for the required interface numbers.
• Use the first addresses in the VLAN networks for the interfaces.

PoliceDept(config)# interface g0/0
PoliceDept(config-if)#no sh

PoliceDept(config)# interface g0/0.45
PoliceDept(config-subif)#encapsulation dot1Q 45
PoliceDept(config-subif)#ip address 192.168.45.1 255.255.255.0

PoliceDept(config)# interface g0/0.47
PoliceDept(config-subif)#encapsulation dot1Q 47
PoliceDept(config-subif)#ip address 192.168.47.1 255.255.255.0

PoliceDept(config)# interface g0/0.101
PoliceDept(config-subif)#encapsulation dot1Q 101
PoliceDept(config-subif)#ip address 192.168.101.1 255.255.255.0

Step 12: Test and Troubleshoot Connectivity.

Ensure that the hosts attached to the VLANs can reach hosts on the School Network and the Internet.

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CCNA 1 v5.0 R&S ITN Final Exam Answers 2014

1 Refer to the exhibit.

The network administrator enters these commands into the R1 router:

R1# copy running-config tftp
Address or name of remote host [ ]?

When the router prompts for an address or remote host name, what IP address should the administrator enter at the prompt?

192.168.9.254

192.168.10.1

192.168.10.2

192.168.11.254

192.168.11.252

2 Which three statements characterize the transport layer protocols? (Choose three.)

TCP uses port numbers to provide reliable transportation of IP packets.

TCP and UDP port numbers are used by application layer protocols.

TCP uses windowing and sequencing to provide reliable transfer of data.

TCP is a connection-oriented protocol. UDP is a connectionless protocol.

UDP uses windowing and acknowledgments for reliable transfer of data.

3 What is the purpose of ICMP messages?

to inform routers about network topology changes

to ensure the delivery of an IP packet

to monitor the process of a domain name to IP address resolution

to provide feedback of IP packet transmissions

4 A technician uses the ping 127.0.0.1 command. What is the technician testing?

connectivity between a PC and the default gateway

connectivity between two adjacent Cisco devices

physical connectivity of a particular PC and the network

the TCP/IP stack on a network host

connectivity between two PCs on the same network

5 What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?

It notifies the sending host that the frame cannot be delivered.

It initiates an ARP request.

It forwards the frame out of all ports except for the port at which the frame was received.

It broadcasts the frame out of all ports on the switch.

6 What is a characteristic of the LLC sublayer?

It places information in the frame that allows multiple Layer 3 protocols to use the same network interface and media.

It provides delimitation of data according to the physical signaling requirements of the medium.

It defines software processes that provide services to the physical layer.

It provides the logical addressing required that identifies the device.

7
On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?

VLAN 1

console 0

vty 0

FastEthernet0/1

8
A network engineer is measuring the transfer of bits across the company backbone for a mission critical database application. The engineer notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)

the reliability of the gigabit Ethernet infrastructure of the backbone

the amount of traffic that is currently crossing the network

the type of traffic that is crossing the network

the sophistication of the encapsulation method applied to the data

the bandwidth of the WAN connection to the Internet

the latency that is created by the number of network devices that the data is crossing

9
When applied to a router, which command would help mitigate brute-force password attacks against the router?

service password-encryption

login block-for 60 attempts 5 within 60

banner motd $Max failed logins = 5$

exec-timeout 30

10
Which two statements correctly describe a router memory type and its contents? (Choose two.)

ROM is nonvolatile and contains basic diagnostic software.

FLASH is nonvolatile and contains a limited portion of the IOS​.

ROM is nonvolatile and stores the running IOS.

RAM is volatile and stores the IP routing table.

NVRAM is nonvolatile and stores other system files.

11
Which two components are necessary for a wireless client to be installed on a WLAN? (Choose two.)

custom adapter

wireless bridge

media

wireless NIC

crossover cable

wireless client software

12 Launch PT - Hide and Save PT

Open the PT activity. Perform the tasks in the activity instructions and then fill in the blank.

The Server0 message is .​ ”   winner   ”

13
A host is accessing a Web server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)

applying security settings to control the flow of data

notifying other devices when errors occur

regenerating data signals

acting as a client or a server

serving as the source or destination of the messages

providing a channel over which messages travel

14

15

16
Which address on a PC does not change, even if the PC is moved to a different network?

IP address

logical address

MAC address

default gateway address

17
What will happen if the default gateway address is incorrectly configured on a host?

A ping from the host to 127.0.0.1 would not be successful.

The host will have to use ARP to determine the correct address of the default gateway.

The host cannot communicate with other hosts in the local network.

The host cannot communicate with hosts in other networks.

The switch will not forward packets initiated by the host.

18
A host PC has just booted and is attempting to lease an address through DHCP. Which two messages will the client typically broadcast on the network? (Choose two.)

DHCPREQUEST

DHCPOFFER

DHCPDISCOVER

DHCPNACK

DHCPACK

19

Refer to the exhibit. An administrator wants to change the name of a brand new switch, using the hostname command as shown. What prompt will display after the command is issued?​

Switch#

My(config)#​

My Switch(config)#​

Switch(config)#​

MySwitch(config)#​

20
After making configuration changes, a network administrator issues a copy running-config startup-config command in a Cisco switch. What is the result of issuing this command?

The configuration changes will be removed and the original configuration will be restored.

The new configuration will be stored in flash memory.

The current IOS file will be replaced with the newly configured file.

The new configuration will be loaded if the switch is restarted.

21

Refer to the exhibit.A TCP segment from a server has been captured by Wireshark, which is running on a host. What acknowledgement number will the host return for the TCP segment that has been received?

2921

250

2

306

21

22
Which technology provides a solution to IPv4 address depletion by allowing multiple devices to share one public IP address?

ARP

DNS

SMB

DHCP

HTTP

NAT

  23 What is the purpose of the routing process?

to encapsulate data that is used to communicate across a network

to select the paths that are used to direct traffic to destination networks

to convert a URL name into an IP address

to provide secure Internet file transfer

to forward traffic on the basis of MAC addresses

  24 Three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?

audio conference, financial transactions, web page

financial transactions, audio conference, web page

audio conference, web page, financial transactions

financial transactions, web page, audio conference

25
A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used?

cell modem

dial-up

cable modem

satellite

DSL

26
Which connection provides a secure CLI session with encryption to a Cisco switch?

a Telnet connection

an SSH connection

a console connection

an AUX connection

27 What is the purpose of the network security accounting function?

to provide challenge and response questions

to require users to prove who they are

to determine which resources a user can access

to keep track of the actions of a user

28

Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator uses Telnet to connect to the switch, which password is needed to access user EXEC mode?

lineconin

linevtyin

letmein

secretin

29
Which publicly available resources describe protocols, processes, and technologies for the Internet but do not give implementation details?

IEEE standards

Request for Comments

IRTF research papers

protocol models

  30 A PC is configured to obtain an IP address automatically from network 192.168.1.0/24. The network administrator issues the arp –a command and notices an entry of 192.168.1.255 ff-ff-ff-ff-ff-ff. Which statement describes this entry?

This entry refers to the PC itself.

This entry maps to the default gateway.

This is a static map entry.

This is a dynamic map entry.

31 Which subnet would include the address 192.168.1.96 as a usable host address?

192.168.1.64/26

192.168.1.32/28

192.168.1.32/27

192.168.1.64/29

32
A particular website does not appear to be responding on a Windows 7 computer. What command could the technician use to show any cached DNS entries for this web page?

ipconfig /all

ipconfig /displaydns

arp -a

nslookup

33 Which type of wireless security generates dynamic encryption keys each time a client associates with an AP?

WPA

PSK

WEP

EAP

34
A frame is transmitted from one networking device to another. Why does the receiving device check the FCS field in the frame?

to compare the interface media type between the sending and receiving ends

to determine the physical address of the sending device

to verify that the frame destination matches the MAC address of the receiving device

to check the frame for possible transmission errors

to verify the network layer protocol information

35

Refer to the exhibit. Which IP addressing scheme should be changed?

Site 1

Site 3

Site 4

Site 2

36
What is the effect of configuring the ipv6 unicast-routing command on a router?

to assign the router to the all-nodes multicast group

to permit only unicast packets on the router

to enable the router as an IPv6 router

to prevent the router from joining the all-routers multicast group

37
Which three IP addresses are private ? (Choose three.)

10.1.1.1

172.16.4.4

224.6.6.6

192.168.5.5

172.32.5.2

192.167.10.10

38

Refer to the exhibit. Consider the IP address configuration shown from PC1. What is a description of the default gateway address?

It is the IP address of the Router1 interface that connects the company to the Internet.

It is the IP address of the ISP network device located in the cloud.

It is the IP address of Switch1 that connects PC1 to other devices on the same LAN.

It is the IP address of the Router1 interface that connects the PC1 LAN to Router1.

39 During normal operation, from which location do most Cisco switches and routers run the IOS?

flash

RAM

NVRAM

disk drive

40
What is an important function of the physical layer of the OSI model?

It encodes frames into electrical, optical, or radio wave signals.

It accepts frames from the physical media.

It encapsulates upper layer data into frames.

It defines the media access method performed by the hardware interface.

41
Which procedure is used to reduce the effect of crosstalk in copper cables?

wrapping the bundle of wires with metallic shielding

avoiding sharp bends during installation

requiring proper grounding connections

designing a cable infrastructure to avoid crosstalk interference

twisting opposing circuit wire pairs together

42
What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)

placement and removal of frames from the media

detection of errors through CRC calculations

conversion of bits into data signals

delimiting groups of bits into frames

data link layer addressing

error correction through a collision detection method

session control using port numbers

43
What method is used to manage contention-based access on a wireless network?

token passing

CSMA/CD

CSMA/CA

priority ordering

44
What happens when part of an Internet radio transmission is not delivered to the destination?

A delivery failure message is sent to the source host.

The part of the radio transmission that was lost is re-sent.

The transmission continues without the missing portion.

The entire transmission is re-sent.

45
What is the auto-MDIX feature on a switch?

the automatic configuration of full-duplex operation over a single Ethernet copper or optical cable

the automatic configuration of an interface for a straight-through or a crossover Ethernet cable connection

the ability to turn a switch interface on or off accordingly if an active connection is detected

the automatic configuration of an interface for 10/100/1000 Mb/s operation

46
Which function is provided by TCP?

detection of missing packets

communication session control

path determination for data packets

data encapsulation

47
How does a Layer 3 switch differ from a Layer 2 switch?

A Layer 3 switch learns the MAC addresses that are associated with each of its ports. However, a Layer 2 switch does not.

A Layer 3 switch maintains an IP address table instead of a MAC address table.

A Layer 3 switch supports VLANs, but a Layer 2 switch does not.

An IP address can be assigned to a physical port of a Layer 3 switch. However, this is not supported in Layer 2 switches.

48
Which two notations are useable nibble boundaries when subnetting in IPv6? (Choose two.)

/68

/62

/66

/64

/70

49
What is the purpose of having a converged network?

to reduce the cost of deploying and maintaining the communication infrastructure

to provide high speed connectivity to all end devices

to make sure that all types of data packets will be treated equally

to achieve fault tolerance and high availability of data network infrastructure devices

50

Refer to the exhibit. A ping to PC3 is issued from PC0, PC1, and PC2 in this exact order. Which MAC addresses will be contained in the S1 MAC address table that is associated with the Fa0/1 port?

just the PC0 MAC address

PC0, PC1, and PC2 MAC addresses

just the PC2 MAC address​

just PC0 and PC1 MAC addresses

just the PC1 MAC address

51
Which field in an IPv4 packet header will typically stay the same during its transmission?

Packet Length

Destination Address

Flag

Time-to-Live

52
What two preconfigured settings that affect security are found on most new wireless routers? (Choose two.)

MAC filtering enabled

default administrator password

WEP encryption enabled

PSK authentication required

broadcast SSID

53
Which parameter does the router use to choose the path to the destination when there are multiple routes available?

the higher metric value that is associated with the destination network

the lower metric value that is associated with the destination network

the higher gateway IP address to get to the destination network

the lower gateway IP address to get to the destination network

54

Refer to the exhibit. What is the significance of the asterisk (*) in the exhibited output?

An asterisk designates that the file system has at least one file that uses that file system.

The asterisk designates which file system is the default file system.

An asterisk indicates that the file system is bootable.

The asterisk shows which file system was used to boot the system.

55

56

Fill in the blank.

During data communications, a host may need to send a single message to a specific group of destination hosts simultaneously. This message is in the form of a    ”  multicast    ”    message.

57

An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?

to interrupt the ping process

to restart the ping process

to allow the user to complete the command

to exit to a different configuration mode

58

Refer to the exhibit. Which area would most likely be an extranet for the company network that is shown?

area A

area D

area C

area B

59

60

61
In which default order will a router search for startup configuration information?

setup mode, NVRAM, TFTP

NVRAM, TFTP, setup mode

NVRAM, RAM, TFTP

TFTP, ROM, NVRAM

flash, ROM, setup mode

62

Launch PT - Hide and Save PT

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
Which IPv6 address is assigned to the Serial0/0/0 interface on RT2?

2001:db8:abc:1::1

2001:db8:abc:5::1

2001:db8:abc:5::2

2001:db8:abc:10::15

63 
What is contained in the trailer of a data-link frame?

physical address

data

error detection*

logical address

64

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