CCNA1 v5.1 Chapter 2 Exam 2015-2016

 

1. What is the function of the kernel of an operating software?

It provides a user interface that allows users to request a specific task.

The kernel links the hardware drivers with the underlying electronics of a computer.

It is an application that allows the initial configuration of a Cisco device.

The kernel provisions hardware resources to meet software requirements.*

2. A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch to manage it. Which access method should be chosen?

Telnet

Console

AUX

SSH*

 

3. Which procedure is used to access a Cisco 2960 switch when performing an initial configuration in a secure environment?

Use Telnet to remotely access the switch through the network.

Use the console port to locally access the switch from a serial or USB interface of the PC.*

Use Secure Shell to remotely access the switch through the network​.

Use the AUX port to locally access the switch from a serial or USB interface of the PC.

 

4. Which command or key combination allows a user to return to the previous level in the command hierarchy?

end

exit*

Ctrl-Z

Ctrl-C

 

5. A router has a valid operating system and a configuration file stored in NVRAM. The configuration file contains an enable secret password but no console password. When the router boots up, which mode will display?

global configuration mode

setup mode

privileged EXEC mode

user EXEC mode*

 

6. Which two functions are provided to users by the context-sensitive help feature of the Cisco IOS CLI? (Choose two.)

providing an error message when a wrong command is submitted

displaying a list of all available commands within the current mode*

allowing the user to complete the remainder of an abbreviated command with the TAB key

determining which option, keyword, or argument is available for the entered command*

selecting the best command to accomplish a task

 

7. Which information does the show startup-config command display?​

the IOS image copied into RAM

the bootstrap program in the ROM

the contents of the current running configuration file in the RAM

the contents of the saved configuration file in the NVRAM*

 

8. Why is it important to configure a hostname on a device?

a Cisco router or switch only begins to operate when its hostname is set

a hostname must be configured before any other parameters

to identify the device during remote access (SSH or telnet)*

to allow local access to the device through the console port

 

9. Which two host names follow the guidelines for naming conventions on Cisco IOS devices? (Choose two.)

Branch2!

RM-3-Switch-2A4*

Floor(15)

HO Floor 17

SwBranch799*

 

10. How does the service password-encryption command enhance password security on Cisco routers and switches?

It encrypts passwords as they are sent across the network.

It encrypts passwords that are stored in router or switch configuration files.*

It requires that a user type encrypted passwords to gain console access to a router or switch.

It requires encrypted passwords to be used when connecting remotely to a router or switch with Telnet.

 

11. Refer to the exhibit. A network administrator is configuring the MOTD on switch SW1. What is the purpose of this command?

to display a message when a user accesses the switch*

to configure switch SW1 so that only the users in the Admin group can telnet into SW1

to force users of the Admin group to enter a password for authentication

to configure switch SW1 so that the message will display when a user enters the enable command

 

12. While trying to solve a network issue, a technician made multiple changes to the current router configuration file. The changes did not solve the problem and were not saved. What action can the technician take to discard the changes and work with the file in NVRAM?

Issue the reload command without saving the running configuration.*

Delete the vlan.dat file and reboot the device.

Close and reopen the terminal emulation software.

Issue the copy startup-config running-config command.

 

13. Which statement is true about the running configuration file in a Cisco IOS device?

It affects the operation of the device immediately when modified.*

It is stored in NVRAM.

It should be deleted using the erase running-config command.

It is automatically saved when the router reboots.

 

14. What are two characteristics of RAM on a Cisco device? (Choose two.)

RAM provides nonvolatile storage.

The configuration that is actively running on the device is stored in RAM.*

The contents of RAM are lost during a power cycle.*

RAM is a component in Cisco switches but not in Cisco routers.

RAM is able to store multiple versions of IOS and configuration files.

 

15. Which interface allows remote management of a Layer 2 switch?

the AUX interface

the console port interface

the switch virtual interface*

the first Ethernet port interface

 

16. Which interface is the default SVI on a Cisco switch?

FastEthernet 0/1

GigabitEthernet 0/1

VLAN 1*

VLAN 99

 

17. Why would a Layer 2 switch need an IP address?

to enable the switch to send broadcast frames to attached PCs

to enable the switch to function as a default gateway

to enable the switch to be managed remotely*

to enable the switch to receive frames from attached PCs

 

18. What command can be used on a Windows PC to see the IP configuration of that computer?

ping

ipconfig*

show interfaces

show ip interface brief

 

19. A technician is adding a new PC to a LAN. After unpacking the components and making all the connections, the technician starts the PC. After the OS loads, the technician opens a browser, and verifies that the PC can reach the Internet. Why was the PC able to connect to the network with no additional configuration?

The PC does not require any additional information to function on the network.

The PC came preconfigured with IP addressing information from the factory.

The PC was preconfigured to use DHCP.*

The PC used DNS to automatically receive IP addressing information from a server.

The PC virtual interface is compatible with any network.

 

20. What is a user trying to determine when issuing a ping 10.1.1.1 command on a PC?

if the TCP/IP stack is functioning on the PC without putting traffic on the wire

if there is connectivity with the destination device*

the path that traffic will take to reach the destination

what type of device is at the destination

 

21. Refer to the exhibit. A network technician is testing connectivity in a new network. Based on the test results shown in the exhibit, which device does the technician have connectivity with and which device does the technician not have connectivity with? (Choose two.)

connectivity: switch 2*

connectivity: PC-D

connectivity: PC-B

no connectivity: switch 1

no connectivity: switch 2

no connectivity: PC-C*

 

22. Refer to the exhibit. What three facts can be determined from the viewable output of the show ip interface brief command? (Choose three.)

Two physical interfaces have been configured.

The switch can be remotely managed.*

One device is attached to a physical interface.*

Passwords have been configured on the switch.

Two devices are attached to the switch.

The default SVI has been configured.*

 

23. An administrator is configuring a switch console port with a password. In what order will the administrator travel through the IOS modes of operation in order to reach the mode in which the configuration commands will be entered? (Not all options are used.)

24. Match the definitions to their respective CLI hot keys and shortcuts. (Not all options are used.)

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CCNA1 v5.1 Chapter 1 Exam 2015-2016

1. A company is contemplating whether to use a client/server or a peer-to-peer network. What are three characteristics of a peer-to-peer network? (Choose three.)

better security

easy to create*

better device performance when acting as both client and server

lacks centralized administration*

less cost to implement*

scalable

2. Which device performs the function of determining the path that messages should take through internetworks?

a router*

a firewall

a web server

a DSL modem

3. What two criteria are used to help select a network medium from various network media? (Choose two.)

the types of data that need to be prioritized

the cost of the end devices utilized in the network

the distance the selected medium can successfully carry a signal*

the number of intermediary devices installed in the network

the environment where the selected medium is to be installed*

4. Which two statements describe intermediary devices? (Choose two.)

Intermediary devices generate data content.

Intermediary devices alter data content.

Intermediary devices direct the path of the data.*

Intermediary devices connect individual hosts to the network.*

Intermediary devices initiate the encapsulation process.

5. What are two functions of end devices on a network? (Choose two.)

They originate the data that flows through the network.*

They direct data over alternate paths in the event of link failures.

They filter the flow of data to enhance security.

They are the interface between humans and the communication network.*

They provide the channel over which the network message travels.

6. Which area of the network would a college IT staff most likely have to redesign as a direct result of many students bringing their own tablets and smartphones to school to access school resources?

extranet

intranet

wired LAN

wireless LAN*

wireless WAN

7. What type of network must a home user access in order to do online shopping?

an intranet

the Internet*

an extranet

a local area network

8. An employee at a branch office is creating a quote for a customer. In order to do this, the employee needs to access confidential pricing information from internal servers at the Head Office. What type of network would the employee access?

an intranet*

the Internet

an extranet

a local area network

9. Which two connection options provide an always-on, high-bandwidth Internet connection to computers in a home office? (Choose two.)

cellular

DSL*

satellite

cable*

dial-up telephone

10. Which two Internet connection options do not require that physical cables be run to the building? (Choose two.)

DSL

cellular*

satellite*

dialup

dedicated leased line

11. Which term describes the state of a network when the demand on the network resources exceeds the available capacity?

convergence

congestion*

optimization

synchronization

12. What type of network traffic requires QoS?

email

on-line purchasing

video conferencing*

wiki

13. Which expression accurately defines the term bandwidth?

a method of limiting the impact of a hardware or software failure on the network

a measure of the data carrying capacity of the media*

a state where the demand on the network resources exceeds the available capacity

a set of techniques to manage the utilization of network resources

14. A network administrator is implementing a policy that requires strong, complex passwords. Which data protection goal does this policy support?

data integrity

data quality

data confidentiality*

data redundancy

15. Which statement describes a characteristic of cloud computing?

A business can connect directly to the Internet without the use of an ISP.

Applications can be accessed over the Internet by individual users or businesses using any device, anywhere in the world.*

Devices can connect to the Internet through existing electrical wiring.

Investment in new infrastructure is required in order to access the cloud.

16. Which statement describes the use of powerline networking technology?

New “smart” electrical cabling is used to extend an existing home LAN.

A home LAN is installed without the use of physical cabling.

A device connects to an existing home LAN using an adapter and an existing electrical outlet.*

Wireless access points use powerline adapters to distribute data through the home LAN.

17. What security violation would cause the most amount of damage to the life of a home user?

denial of service to your email server

replication of worms and viruses in your computer

capturing of personal data that leads to identity theft*

spyware that leads to spam emails

18. A user is implementing security on a small office network. Which two actions would provide the minimum security requirements for this network? (Choose two.)

implementing a firewall*

installing a wireless network

installing antivirus software*

implementing an intrusion detection system

adding a dedicated intrusion prevention device

19. Fill in the blank.

A __converged__ network is capable of delivering voice, video, text, and graphics over the same communication channels.

20. Fill in the blank.

The acronym __byod__ refers to the policy that allows employees to use their personal devices in the business office to access the network and other resources.

21. Match the description to the form of network communication. (Not all options are used.)

 

Web pages that groups of people can edit and view together -> wiki
Interactive websites where people created and share user-generated content with friends and family ->Social media
real-time communication of between two or more people -> instant messaging
an audio-based medium that allows people to deliver their recordings to a wide audience -> podcast

22. Match each characteristic to its corresponding Internet connectivity type. (Not all options are used.)

satellite -> Not suited for heavily wooded areas
dialup telephone -> typically has very low bandwidth
DSL -> splits the access line into three signals
cable -> uses coaxial cable as a medium

23. Match the definition to the security goal. (Not all options are used.)

maintaining integrity -> the assurance that the information has not been altered during transmission
ensuring confidentiality -> only the intended recipients can access and read the data
ensuring availability -> the assurance of timely and reliable access to data

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CCNA 3 – Chapter 4 – Exam Answer 2016 100%

CCNA 3 – Chapter 4 – Wireless LANs Exam Answer 2016 100%

1.Which type of management frame may regularly be broadcast by an AP?

• probe request
• probe response
• beacon
• authentication

2.Which feature of 802.11n wireless access points allows them to transmit data at faster speeds than previous versions of 802.11 Wi-Fi standards did?

• WPS
• MITM
• SPS
• MIMO

3.Which two roles are typically performed by a wireless router that is used in a home or small business? (Choose two.)

• access point
• Ethernet switch
• RADIUS authentication server
• repeater
• WLAN controller

4.Fill in the blank. Do not use abbreviations.
Ad hoc wireless topologies sometimes can use a feature calledtethering to enable a smartphone to create a personal hotspot.

5.Which organization certifies vendors for adherence to the 802.11 standards to improve interoperability of 802.11 products?

• IEEE
• Wi-Fi Alliance
• FCC
• ITU-R

6.What type of wireless antenna is best suited for providing coverage in large open spaces, such as hallways or large conference rooms?

• directional
• dish
• omnidirectional
• Yagi

7.What is a difference between Cisco APs that operate in a home environment and Cisco APs that operate in a corporate environment?

• Controller-based APs are used in the corporate environment, and they are server-dependent devices that require an initial configuration to operate.
• Some corporate AP models can operate in either autonomous mode or controller-based mode.
• Autonomous APs are used only in the home environment, and they incorporate the functions of a router, switch, and AP into one device.
• Cisco corporate APs do not support PoE.

8.Place the following actions in the order in which they occur in a shared key authentication process. (Not all options are used.)

Place the following actions in the order in which they occur in a shared key authentication process. (Not all options are used.)

9.Which type of wireless topology is created when two or more Basic Service Sets are interconnected by Ethernet?

• BSS
• ESS
• ad hoc WLAN
• IBISS
• WiFi Direct

10.A student uses a laptop to upload an assignment to a file server. Which wireless frame type did the laptop send to locate and associate with the campus access point?

• control frame
• management frame
• beacon frame
• data frame

11.A WLAN user wants to allocate an optimal amount of bandwidth to a specific online game. What is a Linksys Smart Wi-Fi tool that will allow the user to do this?

• Speed Test
• Bandwidth Prioritization
• Widgets
• Media Prioritization 

12.During which stage of establishing connectivity between a WLAN client and an AP does the client learn the MAC address of the AP?

• probing
• encryption
• authentication
• discovery
• association

13.For which discovery mode will an AP generate the most traffic on a WLAN?

• open mode
• active mode
• passive mode
• mixed mode

14.What is an advantage of SSID cloaking?

• Clients will have to manually identify the SSID to connect to the network.
• It is the best way to secure a wireless network.
• It provides free Internet access in public locations where knowing the SSID is of no concern.
• SSIDs are very difficult to discover because APs do not broadcast them.

15.If three 802.11b access points need to be deployed in close proximity, which three frequency channels should be used? (Choose three.)

• 1
• 3
• 5
• 6
• 8
• 11

16.Match the type of attack to its description. (Not all options are used.)

CCNA 3 – Chapter 4 – Wireless LANs Exam Answer 2016 100%

17.Which three Wi-Fi standards operate in the 2.4GHz range of frequencies? (Choose three.)

• 802.11b
• 802.11n
• 802.11ac
• 802.11a
• 802.11g

18.Which security mode is the least secure choice when a home wireless router is configured?

• WPA2
• WPA2-Personal
• WPA
• WEP

19.A administrator wishes to extend the range of the existing IEEE 802.11n network without changing the AP. What can the administrator do to accomplish this?

• Split the wireless traffic between the 802.11n 2.4 GHz band and the 5 GHz band.
• Change to WPA2 authentication.
• Upgrade the firmware on the AP.
• Deploy a Wi-Fi Range Extender.

20.A company has recently implemented an 802.11n wireless network. Some users are complaining that the wireless network is too slow. Which solution is the best method to enhance the performance of the wireless network?

• Split the traffic between the 2.4 GHz and 5 GHz frequency bands.
• Upgrade the firmware on the wireless access point.
• Replace the wireless NICs on the computers that are experiencing slow connections.
• Disable DHCP on the access point and assign static addresses to the wireless clients.

21.An employee connects wirelessly to the company network using a cell phone. The employee then configures the cell phone to act as a wireless access point that will allow new employees to connect to the company network. Which type of security threat best describes this situation?

• denial of service
• spoofing
• cracking
• rogue access point

22.Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
What is the SSID of the connected network and which message is displayed in the browser window?

• SSID: Home-Net
  Message:Congratulations! You were able to connect it!
• SSID: Home-Network
  Message: Good job!
• SSID: Home-Network
  Message: Well done!
• SSID: Home-Net
  Message:Congratulations! You did it!

23.Which statement defines the control frame operation between two stations?

• A station responds to an RTS frame with an ACK frame, thus providing permission for the requesting station to send a data frame.
• After receiving a data frame, the receiving station will send an ACK frame to the sending station if no errors are found.
• A station sends an RTS frame as the first step in a three-way handshake that is required before sending data frames.
• If the sending station does not receive an ACK frame within a predetermined period of time, the sending station will drop the connection.

24.What is the purpose of the Distributed Coordination Function in an IEEE 802.11 WLAN environment?

• It is used in a full-duplex environment to detect collisions.
• It allows the client to change transmission channels.
• It is used to send data over a half-duplex connection.
• It allows a client to detect whether or not a channel is clear prior to transmission.

25.Fill in the blank. Use the acronym.
Which encryption protocol is used by the WPA2 shared key authentication technique? AES

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