computer network simple homework
computer network simple homework
QUESTION 1
1.[Unit 7] Handling the general case of making two different networks interwork is exceedingly difficult. However, there is a common special case that is manageable even for different network protocols. This case is where the source and destination hosts are on the same type of network, but there is a different network in between. What technique is used to handle a connection between different networks?
A. |
connection-oriented technique |
|
B. |
tunneling |
|
C. |
bridge |
|
D. |
forwarding |
QUESTION 2
1.[Unit 7] Each network or link imposes some maximum size on its packets. These limits have various causes among many issues. What is NOT an issue?
A. |
Operating System |
|
B. |
Addressing |
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C. |
Protocol |
|
D. |
Reduce error-induced retransmissions |
QUESTION 3
1.[Unit 7] Each IP packet is sent with its header bits set to indicate that no fragmentation is allowed to be performed. If a router receives a packet that is too large, it generates an error packet, returns it to the source, and drops the packet. What is this strategy called?
A. |
Dynamic Fragmentation |
|
B. |
Fixed Fragmentation |
|
C. |
Path MTU Discovery |
|
D. |
IP Packet Discovery |
QUESTION 4
1.[Unit 7] There are five optional fields for the IP version 4 protocol. What is NOT an optional field?
A. |
Security |
|
B. |
Record route |
|
C. |
Control |
|
D. |
Timestamp |
QUESTION 5
1.[Unit 7] The problem of running out of IP addresses is not a theoretical one that might occur at some point in the distant future. It is happening right here and right now. The long-term solution is for the whole Internet to migrate to IPv6, which has 128-bit addresses. This transition is slowly occurring, but it will be years before the process is complete. To get by in the meantime, a quick fix was needed. The quick fix that is widely used today came in the form of ______________.
A. |
IP Extension |
|
B. |
Address Extension |
|
C. |
Network Address Translation |
|
D. |
IP Translation |
QUESTION 6
1.[Unit 7] Each router that is connected to two or more areas is called a(n) ___________. It must also be part of the backbone.
A. |
Internal Router |
|
B. |
Boundary Router |
|
C. |
Backbone Router |
|
D. |
Area Border Router |
QUESTION 7
1.[Unit 7] the Internet is made up of a large number of independent networks that are operated by different organizations, usually a company, university, or ISP. Inside of its own network, an organization can use its own algorithm for internal routing, or ________________.
A. |
Interdomain Routing |
|
B. |
Domain Routing |
|
C. |
Intradomain Routing |
|
D. |
Outer Routing |
QUESTION 8
1.[Unit 7] In the network layer, the Internet can be viewed as a collection of networks or _______________ that are interconnected. There is no real structure, but several major backbones exist. These are constructed from high-bandwidth lines and fast routers. The biggest of these backbones, to which everyone else connects to reach the rest of the Internet. (Do NOT write an acronym.)
QUESTION 9
1.[Unit 7] Since the prefix length cannot be inferred from the IP address alone, routing protocols must carry the prefixes to routers. Sometimes prefixes are simply described by their length, as in a ‘‘/16’’ which is pronounced ‘‘slash 16.’’ The length of the prefix corresponds to a binary mask of 1s in the network portion. What is this mask called?
QUESTION 10
1.[Unit 7] There are five goals of Mobile IP. Write one of the goals.