Computer Networks

1031. What is an example of a physical layer definition

1. RS-323C/D
2. RS-232C/D
3. RS-233C/D
4. RS-322C/D

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1032. What is the extension of PPTP

1. PPP
2. RAS
3. L2TP(Layer Two Tunneling Protocol)
4. None of these

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1033. What is the frequency range of gamma and cosmic rays

1. >1008GHz
2. <1018GHz
3. >1018GHz
4. <1008GHz

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1034. What is the port number of the FTP

1. 25
2. 23
3. 20/21
4. 27960

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1035. What is the port number of the HTTP

1. 80
2. 25
3. 23
4. 20/21

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1036. What is the port number of the Quake III Arena

1. 25
2. 23
3. 20/21
4. 27960

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1037. What is the port number of the SMTP

1. 25
2. 23
3. 20/21
4. 27960

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1038. What is the port number of the Telnet

1. 25
2. 23
3. 20/21
4. 27960

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1039. When a slot repeated every 4.615ms constitute a ____________ channel which can be split into several logical channel

1. Logical
2. Physical
3. Both a & b
4. None of these

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1040. When data travels downwards from upper the layer in TCP/IP, each upper layer attaches a

1. Footer
2. Header
3. Standard
4. None of these

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