What information is displayed by the show hosts command?1. Temporary DNS entries2. The names of the routers created using the hostname command3. The IP addresses of workstations allowed to access the router4. Permanent name-to-address mappings created using the ip host command5. The length of time a host has been connected to the router via Telnet

Computer Networking
What information is displayed by the show hosts command?1. Temporary DNS entries2. The names of the routers created using the hostname command3. The IP addresses of workstations allowed to access the router4. Permanent name-to-address mappings created using the ip host command5. The length of time a host has been connected to the router via Telnet

3, 4, and 5

1, 2 and 3

All of these

1 and 4

3, 4, and 5

1, 2 and 3

All of these

1 and 4

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Computer Networking
Information systems with common hardware, software, and network standards that provide easy access for end users and their networked computer systems. Select the best fit for answer:

Open Systems

Protocol

Internetwork processor

TCP/IP

None of these

Open Systems

Protocol

Internetwork processor

TCP/IP

None of these

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Computer Networking
Which of the following are true regarding OSPF areas?1. You must have separate loopback interfaces configured in each area.2. The numbers you can assign an area go up to 65,535.3. The backbone area is also called area 0.4. If your design is hierarchical, then you don't need multiple areas.5. All areas must connect to area 0.

1 and 2 only

3 and 4 only

3, 4 and 5

1 only

1 and 2 only

3 and 4 only

3, 4 and 5

1 only

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Computer Networking
The difference between a multiplexer and a statistical multiplexer is

Multiplexer use X.25 protocol, while statistical multiplexers use the Aloha protocol

Multiplexers use Time Division Multiplexing (TDM) while statistical multiplexers use Frequency Division Multiplexing (FDM)

Multiplexers often waste the output link capacity while statistical multiplexers optimize its use

Statistical multiplexers need buffers while multiplexers do not need buffers

None of these

Multiplexer use X.25 protocol, while statistical multiplexers use the Aloha protocol

Multiplexers use Time Division Multiplexing (TDM) while statistical multiplexers use Frequency Division Multiplexing (FDM)

Multiplexers often waste the output link capacity while statistical multiplexers optimize its use

Statistical multiplexers need buffers while multiplexers do not need buffers

None of these

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Computer Networking
A group of 2m - 1 routers are interconnected in a centralized binary tree, with router at each tree node. Router I communicate with router J by sending a message to the root of the tree. The root then sends the message back down to J. Then find the mean router-router path length.

2 (m - 2)

m - 1

2 (2m - 1)

(2m - l)/mJ

2 (m - 2)

m - 1

2 (2m - 1)

(2m - l)/mJ

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Computer Networking
What is the port number for POP3?

49

90

80

110

49

90

80

110

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Computer Networking

Computer Networking Information systems with common hardware, software, and network standards that provide easy access for end users and their networked computer systems. Select the best fit for answer:

Computer Networking The difference between a multiplexer and a statistical multiplexer is

Computer Networking What is the port number for POP3?

Computer Networking
Information systems with common hardware, software, and network standards that provide easy access for end users and their networked computer systems. Select the best fit for answer:

Computer Networking
The difference between a multiplexer and a statistical multiplexer is

Computer Networking
What is the port number for POP3?