Chapter 6 Answers CCNA 1

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1. 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?

1. switch the packet to the directly connected interface

2. look up the next-hop address for the packet

3. discard the traffic after consulting the route table

4. analyze the destination IP address



2. How do hosts ensure that their packets are directed to the correct network destination?

1. 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.

2. They always direct their packets to the default gateway, which will be responsible for the packet delivery.

3. They send a query packet to the default gateway asking for the best route.

4. They search in their own local routing table for a route to the network destination address and pass this information to the default gateway.



3. When would the Cisco IOS image held in ROM be used to boot the router?

1. when the full IOS cannot be found

2. when the running configuration directs the router to do this

3. during a normal boot process

4. during a file transfer operation



4.

A packet leaving PC-1 has to traverse three hops to reach PC-4.​



5.

Does the router have enough RAM and flash memory to support the new IOS?

1. The router has enough RAM and flash memory for the IOS upgrade

2. The router needs more RAM and more flash memory for the IOS upgrade.

3. The router has enough RAM, but needs more flash memory for the IOS upgrade.

4. The router has enough flash memory, but needs more RAM for the IOS upgrade.



6. 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.)

1. ARP cache & routing table

2. Cisco IOS image file

3. startup configuration

4. bootstrap file



7. 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.)

1. password cisco
 
2. line console 0
 
3. login



8. Why is NAT not needed in IPv6?​

1. Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.​

2. line vty 0 4

3. interface fastethernet 0/0

4. enable secret cisco



9. 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?

1. copy running-config startup-config

2. copy startup-config flash

3. copy running-config flash

4. reload

5. copy startup-config running-config


10. What is a service provided by the Flow Label field of the IPv6 header?

1. It informs network devices to maintain the same path for real-time application packets

2. It identifies the total length of the IPv6 packet.

3. It limits the lifetime of a packet.

4. It classifies packets for traffic congestion control.



11. 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?

1. upper-layer connection-oriented protocols

2. Transport layer UDP protocols

3. connectionless acknowledgements

4. Network layer IP protocols



12. Fill in the blank. In a router,_____is the nonvolatile memory where the diagnostic software, the bootup instructions, and a limited IOS are stored.

ROM



13. Which two commands can be used on a Windows host to display the routing table? (Choose two.)

1. route print, netstat -r

2. tracert

3. show ip route

4. netstat -s



14. A technician is manually configuring a computer with the necessary IP parameters to communicate over the corporate network. The computer already has an IP address, a subnet mask, and a DNS server. What else has to be configured for Internet access?

1. the default gateway address

2. the MAC address

3. the domain name of the organization

4. the WINS server address



15. Which command displays a summary chart of all router interfaces, their IP addresses, and their current operational status?

1. show ip interface brief

2. show interfaces

3. show version

4. show ip route



16. Which two files, if found, are copied into RAM as a router with the default configuration register setting boots up? (Choose two.)

1. IOS image file
 
2. startup configuration

3. POST diagnostics

4. running configuration



17. Which two interfaces will allow access via the VTY lines to configure the router? (Choose two.)

1. LAN and WAN interfaces

2. console interfaces

3. USB interfaces

4. aux interfaces



18. Which IPv4 header field is responsible for defining the priority of the packet?

1. differentiated services

2. traffic class

3. flow label

4. flags



19. A computer has to send a packet to a destination host in the same LAN. How will the packet be sent?

1. The packet will be sent directly to the destination host.

2. The packet will be sent only to the default gateway.

3. 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.

4. 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.



20. Match the configuration mode with the command that is available in that mode

21.Which statement about router interfaces is true?

A configured and activated router interface must be connected to another device in order to operate.



22.Match field names to the header where they would be found

23.