Computer Knowledge

Computer Networks

2,614 Questions

Computer networks involve the architecture, protocols, and security measures used for digital communication. This collection covers OSI model layers, IP addressing, data transmission, and cryptographic standards. These concepts are vital for the computer knowledge sections of banking and government exams.

OSI model layersNetwork protocolsIP subnet maskingData encryption standardsServer configurationsNetwork commands

Computer Networks Questions

Multiple choice

What does the transport layer QOS parameter, connection release failure and probability measure?

  1. Fraction of times the agreed upon goals were not met.

  2. Fraction of connection release attempts that did not complete.

  3. Probability of transport layer terminating a connection.

  4. Chance of connection not being established within the maximum establishment delay time.

  5. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It is measured by Connection Release Failure Probability.

Multiple choice

Which of the following insulates a private network from a public network using carefully established controls on the types of request they will route through the private network for processing and fulfillment?

  1. Router

  2. Protocol

  3. Firewall

  4. Packet filtering

  5. Cache
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This insulates a private network form a public network using carefully established controls on the types of request they will route through to the private network for processing and fulfillment.

Multiple choice

The signal transduction pathway databases are __________

  1. Reactome and NetPath

  2. Reactome and MetaCyc

  3. Netpath and MANET

  4. Netpath and MetaCyc

  5. Reactome and MANET
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This option is correct because NetPath is a manually curated resource of human signal transduction pathways and Reactome is a navigable map of human biological pathways, ranging from metabolic processes (metabolic pathways) to hormonal signalling (signal transduction pathways).

Multiple choice

Which of the following is a communications protocol for message-oriented middleware built on Extensible Markup Language?

  1. RTP

  2. SNMP

  3. SSH

  4. SIMPLE

  5. XMPP
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Extensible Messaging and Presence Protocol (XMPP) is a communications protocol for message-oriented middleware based on XML (Extensible Markup Language). It enables the near-real-time exchange of structured yet extensible data between any two or more network entities.

Multiple choice

Which of the following is not a disadvantage of static packet filter?

  1. Static packet filter only examines IP and TCP headers.

  2. Static packet filter offers low level of security.

  3. Static packet filter lacks state awareness.

  4. Static packet filter can be established without following the RFC-recommended 3 way-handshake.

  5. Static packet filter is susceptible to IP spoofing.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

It is a disadvantage of dynamic (state aware) packet filter.

Multiple choice

Which of the following is an advantage of air-gap firewall technology?

  1. Low cost

  2. No unexpected traffic via other sockets

  3. State awareness

  4. Provides services for a wide range of protocols

  5. Highest level of security
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Air-gap firewall technology has no unexpected traffic via other sockets since it creates an isolated path for moving files between an external server and a company's internal network and systems.