The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols, needs authentication of users connecting to the network, and since some calls will be long distance, needs callback support. Which of the following protocols is the best choice for these remote services?

Computer Networking
The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols, needs authentication of users connecting to the network, and since some calls will be long distance, needs callback support. Which of the following protocols is the best choice for these remote services?

802.1

Frame Relay

HDLC

PPP

PAP

802.1

Frame Relay

HDLC

PPP

PAP

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
The method of communication in which transmission takes place in both directions, but only one direction at a time is called

Four wire circuit

Full Duplex

Half Duplex

Simplex

Four wire circuit

Full Duplex

Half Duplex

Simplex

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
Carrier is

a collection of interconnected functional units that provides a data communications service among stations attached to the network

None of these

One or more conductors that serve as a common connection for a related group of devices

the condition when two or more sections attempt to use the same channel at the same time

a continuous frequency capable of being modulated or impressed with a second signal

a collection of interconnected functional units that provides a data communications service among stations attached to the network

None of these

One or more conductors that serve as a common connection for a related group of devices

the condition when two or more sections attempt to use the same channel at the same time

a continuous frequency capable of being modulated or impressed with a second signal

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
What is the port number for NNTP?

80

119

70

None of these

79

80

119

70

None of these

79

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
How many non-overlapping channels are available with 802.11b?

23

3

12

40

23

3

12

40

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost.

P I (K + 1)

None of these

K I (K - P)

KIK (1 + F)

1/ (1 - F)

P I (K + 1)

None of these

K I (K - P)

KIK (1 + F)

1/ (1 - F)

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking

Computer Networking The method of communication in which transmission takes place in both directions, but only one direction at a time is called

Computer Networking Carrier is

Computer Networking What is the port number for NNTP?

Computer Networking How many non-overlapping channels are available with 802.11b?

Computer Networking Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost.

Computer Networking
The method of communication in which transmission takes place in both directions, but only one direction at a time is called

Computer Networking
Carrier is

Computer Networking
What is the port number for NNTP?

Computer Networking
How many non-overlapping channels are available with 802.11b?

Computer Networking
Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost.