CCNA 1 – Chapter 6 – Network Layer Exam Answer 2016 100%
1. A technician is configuring a router that is actively running on the network. Suddenly, power to the router is lost. If the technician has not saved the configuration, which two types of information will be lost? (Choose two.)
- routing table
- ARP cache
- startup configuration
- Cisco IOS image file
- bootstrap file
2. Why is NAT not needed in IPv6??
- Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.?
- The end-to-end connectivity problems that are caused by NAT are solved because the number of routes increases with the number of nodes that are connected to the Internet.
- Because IPv6 has integrated security, there is no need to hide the IPv6 addresses of internal networks.?
- The problems that are induced by NAT applications are solved because the IPv6 header improves packet handling by intermediate routers.?
3. When connectionless protocols are implemented at the lower layers of the OSI model, what are usually used to acknowledge the data receipt and request the retransmission of missing data?
- upper-layer connection-oriented protocols
- Transport layer UDP protocols
- connectionless acknowledgements
- Network layer IP protocols
4. Which IPv4 header field is responsible for defining the priority of the packet??
- flags
- traffic class
- flow label
- differentiated services
5. What is a service provided by the Flow Label field of the IPv6 header?
- It identifies the total length of the IPv6 packet.
- It informs network devices to maintain the same path for real-time application packets.
- It limits the lifetime of a packet.
- It classifies packets for traffic congestion control.
6.Match the configuration mode with the command that is available in that mode. (Not all options are used.)
Match the configuration mode with the command that is available in that mode. (Not all options are used.)
Match the configuration mode with the command that is available in that mode. (Not all options are used.)
7. How do hosts ensure that their packets are directed to the correct network destination?
- They always direct their packets to the default gateway, which will be responsible for the packet delivery.
- They send a query packet to the default gateway asking for the best route.
- They have to keep their own local routing table that contains a route to the loopback interface, a local network route, and a remote default route.?
- They search in their own local routing table for a route to the network destination address and pass this information to the default gateway.
8. During the process of forwarding traffic, what will the router do immediately after matching the destination IP address to a network on a directly connected routing table entry?
- look up the next-hop address for the packet
- analyze the destination IP address
- discard the traffic after consulting the route table
- switch the packet to the directly connected interface
9. Which two interfaces will allow access via the VTY lines to configure the router? (Choose two.)
- LAN interfaces
- console interfaces
- USB interfaces
- aux interfaces
- WAN interfaces
10. Refer to the exhibit. Match the packets with their destination IP address to the exiting interfaces on the router. (Not all targets are used.)
CCNA 1 – Chapter 6 – Network Layer Exam Answer 2016 100%
Refer to the exhibit. Match the packets with their destination IP address to the exiting interfaces on the router. (Not all targets are used.)
CCNA 1 – Chapter 6 – Network Layer Exam Answer 2016 100%
Refer to the exhibit. Match the packets with their destination IP address to the exiting interfaces on the router. (Not all targets are used.)
11. Which two files, if found, are copied into RAM as a router with the default configuration register setting boots up? (Choose two.)
- IOS image file
- POST diagnostics
- running configuration
- startup configuration
12. When would the Cisco IOS image held in ROM be used to boot the router?
- during a normal boot process
- when the running configuration directs the router to do this
- during a file transfer operation
- when the full IOS cannot be found
13. After troubleshooting a router, the network administrator wants to save the router configuration so that it will be used automatically the next time that the router reboots. What command should be issued?
- copy startup-config flash
- reload
- copy startup-config running-config
- copy running-config flash
- copy running-config startup-config
14. A computer has to send a packet to a destination host in the same LAN. How will the packet be sent?
- The packet will first be sent to the default gateway, and then from the default gateway it will be sent directly to the destination host.
- The packet will be sent only to the default gateway.
- The packet will be sent to the default gateway first, and then, depending on the response from the gateway, it may be sent to the destination host.
- The packet will be sent directly to the destination host.
15. Which three commands are used to set up a password for a person who attaches a cable to a new router so that an initial configuration can be performed? (Choose three.)
- line console 0
- enable secret cisco
- login
- password cisco
- interface fastethernet 0/0
- line vty 0 4
16. Which statement about router interfaces is true?
- Commands that apply an IP address and subnet mask to an interface are entered in global configuration mode.
- A configured and activated router interface must be connected to another device in order to operate.
- Router LAN interfaces are not activated by default, but router WAN interfaces are.
- Once the no shutdown command is given, a router interface is active and operational.
17. Which command displays a summary chart of all router interfaces, their IP addresses, and their current operational status?
- show ip interface brief
- show ip route
- show version
- show interfaces
18. Refer to the exhibit. Fill in the blank.
A packet leaving PC-1 has to traverse 3 hops to reach PC-4.?
19. Fill in the blank. In a router, ROM is the nonvolatile memory where the diagnostic software, the bootup instructions, and a limited IOS are stored.
20. Match field names to the IP header where they would be found. (Not all options are used.)
CCNA 1 – Chapter 6 – Network Layer Exam Answer 2016 100%
CCNA 1 – Chapter 6 – Network Layer Exam Answer 2016 100%
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