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3. which is true regarding dynamic routing?
a. static routes are best in large networks and thus better to use than dynamic routing protocols.
b. static routes are automatically added to the routing table but dynamic routes must be added by hand
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4. which of the following is true for MAC addresses?
A. MAC addresses are never local on the LAN and always pass through a router
B. MAC addresses are always local on the LAN and never go through or past a router
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Ch. 9. chapter review

QuestionQuestionAnswerAnswer
3. which is true regarding dynamic routing? a. static routes are best in large networks and thus better to use than dynamic routing protocols. b. static routes are automatically added to the routing table but dynamic routes must be added by hand 3. you must use a DNS and WINS server when configuring dynamic routing d. dynamic routes are automatically added to the routing table. 3. D. Dynamic routing scales well in large networks and routes are automatically added into the routing table. static routing is done by hand, one route at a time into each router. 3
4. which of the following is true for MAC addresses? A. MAC addresses are never local on the LAN and always pass through a router B. MAC addresses are always local on the LAN and never go through or past a router 4. C. MAC addresses will always be the IP address of Fa0/0 interface. D. None of the above. 4. B. Media Access Control (MAC) addresses are always local on the LAN and never go through and past a router. 4
5. what is it called when protocols update their forwarding tables after changes have occurred? a. name resolution b. routing c. convergence d. ARP resolution 5. 5. C. Routing convergence is the time required by the routing protocols to update the routing tables (forwarding tables) on all routers in the network. 5
6. what command would be used to view the ARP cache on your host? A. C:\ > show ip route B. C:\ >show ip arp C. C:\ >show protocols D. C:\ >arp -a 6 6. D. The arp -a command will show the ARP cache on your host 6
7. what happens when a router receives a packet for a network that isn't listed in the routing table? a. it forwards the packet to the next available router b. it holds the packet until the address is updated in the routing cable 7. c. the router will use RIP to inform the host that it can't send the packet d. none of the above 7. D. Hope you answered D! A router will not send a broadcast looking for the remote network- the router will discard the packet. 7
8. which of the following is not a distance vector protocol? A. RIPv1 B. RIPv2 C. OSPF D. IGRP 8 8. C. RIPv1 and 2 and IGRP are all distance vector (DV) protocols. routers using a DV protocol send all or parts or their routing table in a routing-update message at a regular interval to each of their neighbor routers. 8
9. Which two of the following are link state protocols? A. RIPv1 B. RIPv2 C. OSPF D. IS-IS E. IGRP 9 9. C,D. Open Shortest Path First (OSPF) and Intermediate System-to-Inermediate System (IS-IS) are link state (LS) routing protocols. 9
10. Which of the following is a hybrid routing protocol? A. RIPv2 B. EIGRP C. IS-IS D. IGRP 10 10. B. The only protocol you could select is Enhanced Interior Gateway Routing Protocol. 10
11. What does the acronym IGRP stand for? A. Interior Gateway Routing Protocol B. Inside Gateway Redundancy Protocol C. Interior Group Reliability Protocol D. Interior Gateway Redundancy Protocol 11 11. A. Interior Gateway Routing Protocol is a DV interior gateway protocol. 11
12. what EGP protocol is used on the internet? A. GGP B. EGP C. BGP D. IGP 12 12. C. Border Gateway Protocol (BGP) is the most popular choice for ISPs or really large corporations. 12
13. What are the two categories of IGP protocols? a. link state b. static c. distance vector d. EGP 13 13. A,C. Distance vector (DV) and link state (LS) are the two routing protocols to remember. 13
14. What two pieces of information does a router require to make a routing decision? a. destination network (address) b. destination MAC address c. application layer protocol d. neighbor router 14 14. A,D. A frame uses MAC addresses to send a packet on the LAN. The frame will take the packet to either a host on the LAN or a router's interface if the packet is destined for a remote network. 14
15. where does a frame have to carry a packet if it is destined for a remote network? a. default gateway b. neighbor host c. switch d. hub 15 15. A. I hope you said A! Packets specifically have to be carried to a router in order to be routed through a network. 15
16. where along the IP routing process does a packet get changed? a. router b. host A c. destination device d. host B 16 16. C. Remember that the frame changes at each hop but that the packet is never changed in any way until it reaches the destination device. 16
17. when all routers in a network agree about the path from one point to another, the network is said to be what? a. dynamic b. static c. secure d. converged 17 17. D. When the routing tables are complete because they include info about all networks in the internetwork, they are considered converged. 17
18. what type of request must a client send if it does not know the destination MAC address? a. ARP broadcast b. multicast c. ICMP redirect d. reverse ARP 18 18. A. This is step 6 in the IP routing process. if the hardware address isn't in the ARP cache of the host, an ARP broadcast is sent out onto the local network to search for the hardware address. 18
19. you need to perform maintenance on a router in your corporate office. it is important that the network does not go down. what can you do to accomplish your goal? a. configure BGP on the router b. implement NAT on the router c. configure on the ... 19...router a static route that temporarily reroutes traffic through another office. d. implement convergence on the router 19. C. The best answer would be to reroute traffic using a temporary static route until the maintenance is complete on the router. 19
20. when are you most likely to see a Request Timed Out message? a. when an unknown error has occurred b. when you have used the arp -a command incorrectly c. when a known error has occurred d. when you are using a hybrid routing protocol 20 20. A. You are most likely to see a Request Timed Out message when (if) a packet is lost on the way back to the originating host for an unknown error. remember, if the error occurs because of a known issue, you are likely to see.. 20. a Destination Unreachable message
1. which is not a routing protocol? A. RIP B. RIPv2 C. RIPv3 D. EIGRP 1 1. C. Yup, you got it. RIP, RIPv2, and EIGRP are all examples of routing protocols. 1
2. Which of these best describes dynamic routing? A. All network addresses must be hand-typed into the routing table. b. only a portion of the network address must be hand-typed into the routing table. c. routing tables are updated automatically when 2. changes occur in the network D. A and B 2. C. In dynamic routing, routers update each other about all the networks they know about and place this info into the routing table. this is possible because a protocol on one router communicates with the same protocol running on neighbor routers. if 2. changes occur in the network, a dynamic routing protocol automatically informs all routers about the event.
Created by: baumsquad
 

 



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