The RIP routing protocol uses the distance vector algorithm. to prevent the count to infinity problem, what is the maximum hop count?

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

1. What is an AS (Autonomous System)

1. all of the routers which can configure themselves.
2. a set of routers that can control other routers.
3. a group of routers owned and operated by a single organization or company.
4. all of the routers in a state.

 

2. An 'edge' router of an AS is where?

1. A router which joints two ASs.
2. One which is runnung the latest beta firmware.
3. the last routers before the internet customer.
4. In the home of an internet provider's customers.

3. The RIP routing protocol uses the distance vector algorithm. to prevent the count to infinity problem, what is the maximum hop count?

1. 32
2. 64
3. 16
4. 100

4. What is a broadcast storm?

1. When all clients on the network send broadcast packets at once.
2. When thunderstorm causes all the routers to power-cycle.
3. When a broadcast packet is replicated on all routers.
4. When a router leaves the network, all nearby routers broadcast a message telling the rest of the network that router has disappeared.

5. A spanning tree over a graph is what?

1. A tree containing a subset of nodes and edges such that all nodes are internal to the tree.
2. A subset of the graph's edges such that no cyvles exist.
3. A graph where duplicate edges are removes.
4. A tree that only contains edge routers.

 

6. What does NAT do?

1. It supplies DNS addresses to clients when needed.
2. It allows external clients to access all internal clients.
3. The Network Attribution Table allows you to find the DNS name from an IP address.
4. It allows multiple clients in a network to gain access to the internet through a single router with a single public IP address

7. What is the attraction of using frame sizes larger than 1500?   

1. It minimizes the overhead (headers) in relation to useful data being sent since headers are the same size regardless of frame size.
2. It allows larger files to be sent over TCP.
3. It is fun to diagnose network issues when clients can no longer communicate using non-standard frame sizes.
4. This is an incorrect answer.

 

8. How many devices could exist inside a subnet if the mask was 255.255.254.0 (include non-valid addresses).       

1. 64
2. 128
3. 256
4. 512

 

9. Which subnet mask matches this CIDR notation? 192.168.1.0/18

1. 255.255.255.0
2. 255.255.254.0
3. 255.255.192.0
4. 255.255.0.0

 

10. In the DHCP protocol how many round trips to the DHCP server are required?               

1. 2
2. 4
3. 1
4. 3

 

11. When a new client is joining a network, what is the destination IP address in the original DHCP request?                  

1. 255.255.255.0
2. 255.255.255.255
3. 0.0.0.0
4. 1.1.1.1

 

 

12. How does a client know what DNS server to use?                       

1. It is (should be) specified in the DHCP information.
2. The DNS address is built into the OS.
3. Devine intervention.
4. The client listens for other traffic on the network and guesses.

 

 

13. In an IPv6 address, what does the presence of in the address mean?                           

1. All 0's between.
2. The address is an internal address.
3. The middle of the address.
4. Nothing, it is just like a single:

 

14. In IPv4, how many bits are in a source or destination address?                               

1. 64
2. 16
3. 32
4. 128

 

15. In IPv6, how many bits in a source or destination address?                                   

1. 16
2. 64
3. 128
4. 32

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