Internet Quiz interview questions

Slotted ALOHA

1. Require global time synchronization
2. Divide time into discrete intervals
3. Both (a) and (b)
4. None of these

Satellite switched Time-Division multiple Access (SS/TDMN) is

1. A form of TDMA in which act switching is used to dynamically change the channel assignments
2. A medium access control technique for multiple access transmission media
3. Method of determining which device has access to the transmission medium at any time
4. All of these

Which of the following device is used with an X.25 network to provide service to asynchronous terminals?

1. Packet assembled
2. Gateway
3. Bridges
4. Repeater

How many digits of the DNIC (Data network identification code) identify the country?

1. First three
2. First four
3. First five
4. First six

Pure ALOHA

1. Require global time synchronization
2. Does not require global time synchronization
3. Both (a) and (b)
4. None of these

Simple network management protocol (SNMP) is implemented with a daughter board in the

1. Separate PC that manages the network
2. Hubs
3. Server
4. Nodes

Number of channels on which different operations can occur simultaneously on one ISDN basic access line is

1. 1
2. 2
3. 3
4. 5

A basic technique for isolating data communications faults is

1. Simulating the system on a special purpose compute
2. Calling the DTE service department
3. Calling the telephone company
4. Performing a loopback test

Which of the following is not a class of LAN?

1. Token bus
2. CSMA/CD
3. Broad band
4. All of these

CSMA/CD is

1. An important protocol
2. IEEE 802.3 (Ethernet)
3. Both (a) and (b)
4. None of these

Local area networks can transmit

1. Faster than telecommunication over public telephone lines
2. Slower than telecommunication over public telephone lines
3. Using twisted-pair wiring or coaxial cables
4. Both (a) and (c)

Carrier is

1. A collection of interconnected functional units that provides a data communications service among stations to the network
2. The condition when two or more sections attempt to use the same channel at the same time
3. A continuous frequency capable of being modulated or impressed with a second signal
4. One or more conductors that serve as a common connection for a related group of devices

RS-232-C

1. is an interface standard between data terminal equipment and data circuit terminating equipment
2. specifies only the mechanical characteristics of an interface by providing a 25-pin connector
3. is an interface between two data circuit terminating equipment as exemplified by a local and remote modem
4. requires only 7 pin out of 25 in order to transmit digital data over public telephone lines

Many low-speed channels are interwoven into one high-speed transmission by

1. Frequency-division multiplexer
2. Time-division multiplexer
3. Both (a) and (b)
4. None of these

What is the name of the computer based EMMS that provides a common forum where users can check it at their convenience, post message, activity exchange ideas and participate in ongoing discussions?

1. Video conferencing
2. Tele conferencing
3. Bulletin Board system (BBS)
4. E-mail

Most sophisticated type of data communications test equipment is

1. Breakout box
2. DTE
3. Protocol analyzer
4. Simulator

Portion of server memory set aside to temporary hold data packets form workstations is called

1. Dirty packet buffer
2. Packet cache buffer
3. Packet block
4. Packet receive buffer

Which of the following is NOT true with respect to a transparent bridge and a router?

1. A router can connect between a LAN and a WAN
2. A bridge builds up its routing table by inspecting incoming packets
3. A bridge uses IP addressed while a router uses MAC addresses
4. Both bridge and router selectively forward data packets

In the slow start phase of the TCP congestion control algorithm, the size of the congestion window

1. Increases exponentially
2. Increases quadratically
3. Increases linearly
4. Does not increase

To set up a bulletin board system we need a

1. Personal computer
2. Telephone line
3. Smart modem with auto answer capabilities
4. All of these

What is loopback address?

1. 127.0.0.0
2. 127.0.0.1
3. 255.0.0.0
4. 255.255.0.0

Firewalls operate by

1. screening packets to/from the Network and provide controllable filtering of network traffic
2. isolating intranet from phase
3. the pre-purchase phase
4. all of these

The ____ folder contains copies of messages that you have started but are not yet ready to send.

1. Send items
2. Drafts
3. Outbox
4. Inbox

The process of communicating with a file from a terminal is

1. Heuristic
2. Interactive
3. Interrogation
4. None of the above

A digital signature is

1. Scanned signature
2. Signature in binary form
3. Handwritten signature
4. Encrypting information

A router

1. Screens incoming information
2. Is a work virus
3. Clears all viruses from a computer system
4. Distributes information between networks

A term relating to sending data to a satellite is

1. Downlink
2. Modulate
3. Demodulate
4. Uplink

The microcomputer, Intel MCS-80 is based on the widely used Intel

1. 8080 microprocessor
2. 8085 microprocessor
3. 8086 microprocessor
4. 8082 microprocessor

Which of the following terms applies to communication between separate computer systems?

1. Connectivity
2. Computer literacy
3. Applications software
4. Power supply

The method of internet access that requires a phone line, but offers faster access speeds than dial-up is the

1. Fibre optic services
2. Modem
3. Digital Subscriber Line (DSL)
4. Satellite access