Sunday, March 22, 2009
QuestionPack Series #1
This exam pack covers Basic OSI & RIP questions.
We are starting today our QuestionPack series! bundled questions that were made by our staff, to help you nail the concepts! We will keep this series updated, so expect a pack like this every week or two.
The first pack contains 15 questions, answers included at the button.
Those questions were written by US, and were made for you to see if you understand the concepts. Good luck..
Questions related to Understanding how packets transverse in a network article.
1. Refer to the exhibit.
1. When a packet is sent from PC0 to PC1, with what credentials would the packet be RECEIVED by PC1?
A. Source IP: 10.0.0.2, Source MAC: aaaa:aaaa:aa10 -- Destination IP: 20.0.0.2, Destionation MAC: bbbb:bbbb:bb20
B. Source IP: 10.0.0.1, Source MAC: rrrr:rrrr:rr20 -- Destination IP: 20.0.0.2, Destionation MAC: bbbb:bbbb:bb20
C. Source IP: 10.0.0.2, Source MAC: rrrr:rrrr:rr20 -- Destination IP: 20.0.0.2, Destionation MAC: bbbb:bbbb:bb20
D: Source IP: 10.0.0.2, Source MAC: oooo:oooo:oo30 -- Destination IP: 20.0.0.2, Destionation MAC: rrrr:rrrr:rr20
2. When the packet is LEAVING PC0, What would be the packet and frame information?
A. Source IP: 10.0.0.2, Source MAC: aaaa:aaaa:aa10 -- Destination IP: 10.0.0.1, Destionation MAC: oooo:oooo:oo10
B. Source IP: 10.0.0.2, Source MAC: aaaa:aaaa:aa10 -- Destination IP: 20.0.0.2, Destionation MAC: oooo:oooo:oo10
C. Source IP: 10.0.0.2, Source MAC: aaaa:aaaa:aa10 -- Destination IP: 30.0.0.2, Destionation MAC: rrrr:rrrr:rr30
D. Source IP: 10.0.0.2, Source MAC: aaaa:aaaa:aa10 -- Destination IP: 20.0.0.2, Destionation MAC: bbbb:bbbb:bb20
3. When the packets are received on Router0's E0/0 interface, through what process they go?
A. The router changes the destination MAC and IP to PC1's information
B. The router passes the packet unchanged to Router1 and Router1 forwards it to PC1 as it was originated
C. The router change only the destionation IP to PC1's 20.0.0.2
D. The router changes only the destionation MAC to PC1's bbbb:bbbb:bb20
E. The router changes only the destionation MAC to Router1's E0/1 interface rrrr:rrrr:rr30
4. PC1 wants to reply back to PC0 ping, how would the packet be sent back from PC1 to PC0?
A. Source IP: 20.0.0.2, Source MAC: bbbb:bbbb:bb20 -- Destination IP: 20.0.0.1, Destionation MAC: rrrr:rrrr:rr20
B. Source IP: 20.0.0.2, Source MAC: bbbb:bbbb:bb20 -- Destination IP: 10.0.0.2, Destionation MAC: rrrr:rrrr:rr20
A. Source IP: 20.0.0.2, Source MAC: bbbb:bbbb:bb20 -- Destination IP: 10.0.0.2, Destionation MAC: rrrr:rrrr:rr30
A. Source IP: 20.0.0.2, Source MAC: bbbb:bbbb:bb20 -- Destination IP: 10.0.0.1, Destionation MAC: oooo:oooo:oo30
5. When a packet is received by a router , and no route for the destination is found in the routing table, the router will:
A. Discard the packet
B. Will send it back through the port it was received, notifying that the destination is unreachable
C. Will forward it to the default-gateway, if there is one.
D.None of the above
6. When a switch is receiving a frame, what is the first thing the switch does?
A. Checking the destionation MAC address to forward the frame as soon as possible.
B. Buffering the frame, checking for errors, and forward it through the outbound interface
C. Learning the source MAC address and inserting it to its MAC-address-table
D. Checking the destination MAC address, and if there is no entry for the destination, the switch floods the frame
E. If the destination MAC is broadcast (all ff's) the switch forwards the frame out all the interfaces including the originate interface of the frame
7. How does the ROUTER build its routing table ?
A. From directly connected networks
B. From manually configured static networks
C. From routing protocols
D. All of the above are correct.
8. What is the right order of encapsulation as the data travels from layer 7 to layer 1?
A. Bits, frame, packet, segment
B. Segment, frame, packet, bits
C. Frame, packet, segment, bits
D. Segment, packet, frame, bits
Section2 :: Questions from RIP Concepts you gotta know article
9. This appear in the routing table of CCNA-R2:
R 100.0.0.0 [120/12] via 192.168.1.1, 00:00:16, FastEthernet0/1
This means (Choose 2):
A. The router is running RIP, and the destination network is directly connected to the next router.
B. The router is running RIP, and the destination network can be reachable through FastEthernet0/1
C. The destination network is 120 hops away.
D. The destination network is 12 hops away.
10. This appear in the routing table of CCNA-R2:
R 100.0.0.0 [120/1] via 192.168.1.1, 00:01:02, FastEthernet0/1
What can we tell from the information above?
A. The route 100.0.0.0 is 1 hop away through FastEthernet0/1
B. 192.168.1.0 is directly connected network
C. 192.168.1.1 MUST be a switch
D. Probably there is a problem with the destination network
11. Refering to the exhibit
What is the MOST correct statement?
A. RIP is running
B. RIPv2 is running
C. RIPv1 is running
D. The links going to appear as 'possible down' in 2:41 min
12. Refering to the exhibit
What is the reason route 100.0.0.0/8 appears as possibly down?
A. The router didn't receive any updates for 180 seconds
B. FastEthernet0/0 is shutted down on the local router
C. 192.168.1.1 got disconnected from FastEthernet0/0 interface
D. The router didn't receive any updates for 30 seconds
12.2 By default, how long will it take to drop this route?
A. Another 30 seconds
B. Another 60 seconds
C. Another 90 seconds
D. Another 50 seconds
E. The link won't get dropped automatically, it needs to be done manually
13. What are the advantages of RIPv2 (Choose three) ?
A. It supports authentication
B. Its easier to install than RIPv1
C. It supports VLSM / CIDR
D. It is broadcasting RIP updates
E. It is multicasting RIP updates
14. This appear in the routing table of CCNA-R2:
R 100.0.0.0 [120/16] via 192.168.1.1, 00:00:03, FastEthernet0/1
What can you tell about this route?
A. It was learned using RIP protocol
B. It received the last routing update 3 seconds ago
C. The route won't be routable due to the metric value
D. The next update should be received in 3 seconds
E. It is routable through FastEthernet0/1, on the next hop 192.168.1.1
ANSWERS:
1. C
2. B
3. E
4. B
5. C
6. C
7. A+B+C
8. D
9. B+D
10. D
11. A
12. A
12.2 B
13. A+C+E
14. C
** Hurry? You can download those questions here - Question_Pack_v1
