On a TCP/IP network, what information within a packet does a router use to determine where an incoming packet should go?

1. (p. 183) On a TCP/IP network, what information within a packet does a router use to determine where an incoming packet should go? 
A. destination MAC addresses
B. destination IP addresses
C. source MAC address
D. source IP address

2. (p. 183) At which layer of the OSI model do routers work?
A. Transport
B. Session
C. Data Link
D. Network

3. (p. 206) Routers using the OSPF protocol are organized into these groups.
A. Areas
B. Subnets
C. Autonomous Systems
D. Ports

4. (p. 193) Which type of NAT is the most popular?
A. Source NAT
B. Static NAT
C. PAT
D. Destination NAT

5. (p. 198) What is the term used for the passage of a packet through a router?
A. hop
B. gateway
C. jump
D. metric

6. (p. 203) Which of the following could be a valid Autonomous System Number (ASN)?
A. 0.0.0.0
B. 1.33457
C. 192.168.30.1
D. 255

7. (p. 204) Which of the following protocols would you expect to find used as an interior gateway protocol within an Autonomous System?
A. IS-IS
B. BGP
C. RIPv2
D. OSPF

8. (p. 202) Which of these routing protocols is the oldest?
A. RIP
B. OSPF
C. BGP
D. IGRP

9. (p. 202) What is the maximum number of hops allowed by RIP?
A. 4
B. 8
C. 12
D. 15

10. (p. 203) Which of the following is the distance vector routing protocol used on the Internet?
A. RIP
B. BGP
C. OSPF
D. IGRP

11. (p. 208) What is the protocol developed by Cisco for enterprise-wide routing environments?
A. RIP
B. OSPF
C. BGP
D. EIGRP

12. (p. 204) Which of the following attributes does not apply to the OSPF routing method?
A. It uses a link state algorithm.
B. It sends routing information at regular intervals even if there are no changes.
C. It sends tiny messages called "Hellos" to its neighbors.
D. It shares detailed information through link state advertisements.

13. (p. 193) In a NAT router, what is the name for an arbitrary number generated by the sending computer?
A. destination port
B. source port
C. ASN number
D. area ID

14. (p. 190) What is the one protocol used on the Internet for communication between Autonomous Systems?
A. Border Gateway Protocol (BGP-4)
B. Open Shortest Path First (OSPF)
C. Overloaded NAT
D. RIPv2

15. (p. 202) What protocol (including version number) was adopted in 1994, and is now considered obsolete except for small, private WANs?
A. Border Gateway Protocol (BGP-4)
B. Open Shortest Path First (OSPF)
C. Overloaded NAT
D. RIPv2

16. (p. 189) Local connections do not use this, although every routing table has a column for it, and therefore, a value appears in this field for each route.
A. netmask
B. interface
C. gateway
D. network Destination

17. (p. 202) Select the distance vector protocols from the following list. (Select all that apply.)
A. Open Shortest Path First (OSPF)
B. RIPv1
C. RIPv2
D. BGP
E. B, C, and D

18. (p. 204) Select the link state dynamic routing protocol from the following list. (Select all that apply.)
A. Open Shortest Path First (OSPF)
B. IS-IS
C. RIPv2
D. BGP
E. Both A and B

19. (p. 194) If your company has a single server on the private LAN that they want to make accessible from the Internet, which of the following would give the server the protection of NAT while allowing access to that server from the Internet?
A. Source NAT
B. port forwarding
C. Overloaded NAT
D. Network Address Translation (NAT)

20. (p. 206) Which of the following would be a valid Area ID?
A. 192.168.30.4
B. 0.0.0.0
C. 192.168.30.0/24
D. 1.33457

21. (p. 206) Who assigns Area IDs?
A. IANA
B. IETF
C. Autonomous System administrator
D. Network administrators

22. (p. 203) Who assigns Autonomous System Numbers (ASNs)?
A. IANA
B. IETF
C. Autonomous System administrator
D. Network administrator

23. (p. 203) Which of the following are NOT dynamic routing protocols? (Choose two answers.)
A. IGP
B. OSPF
C. EGP
D. BGP
E. Both A and C

24. (p. 194) With this type of NAT, many computers can share a pool of routable IP addresses that number fewer than the computers.
A. Dynamic NAT
B. Static NAT
C. Source NAT
D. Destination NAT

25. (p. 193) When a NAT router uses this in conjunction with IP addresses, it helps to solve the two problems of security and limited IP addresses.
A. Source addresses
B. TCP/IP port numbers
C. Autonomous System numbers
D. Area ID

26. (p. 193) Some manufacturers, such as Cisco, use this term to refer to either overloaded NAT or port forwarding.
A. Static NAT
B. Dynamic NAT
C. Port Address Translation (PAT)
D. Source NAT

27. (p. 204-208) Which of the following is true of OSPF routers? (Select all that apply.)
A. They send Hello messages every 30 minutes to routers in their area.
B. They do not support CIDR.
C. They have a 15-hop limit.
D. They converge almost instantly.
E. Both A and D

28. (p. 210) What is the name of the proprietary cable designed by Cisco for connecting to their routers?
A. port
B. parallel
C. Yost
D. crossover

29. (p. 213) An administrator managing many routers should be using this type of tool in order to have an overall view of all the routers.
A. traceroute
B. Network Management System (NMS)
C. ping
D. MTR

30. (p. 216) What task(s) should you perform as soon as you finish configuring a router? (Select all that apply.)
A. traceroute
B. back up the router configuration
C. document how you configured the router
D. turn on dynamic routing
E. both C and B

31. (p. 198) Which one of the following routing metrics determines the largest frame a particular technology can handle?
A. MTU
B. hop count
C. latency
D. cost

32. (p. 202) Which one of the following routing protocols did not support Variable-Length Subnet Masking (VLSM)?
A. OSPF
B. IS-IS
C. RIPv1
D. RIPv2

33. (p. 193) Which one of the following NAT technologies uses port numbers to map traffic from specific machines on the network?
A. Dynamic NAT
B. SNAT
C. Pooled NAT
D. PAT

34. (p. 199) Which of the following routing metrics, administratively assigned to links, affect which routes are chosen?
A. latency
B. cost
C. MTU
D. bandwidth

35. (p. 199) Which of the following routing metrics is the ability of a connection to handle more traffic than others?
A. bandwidth
B. MTU
C. cost
D. latency