Computer Networks

291 questions available

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Showing 281–291 of 291

Q281.The UNIX shell is characterized as which of the following languages?

Easy
A Scripting and interpreted language
B High-level and low-level language
C Interactive and responsive language
D Interpreted and executing language
Network Basics PPSC

Correct Answer: A

A Unix shell is an interpreted command-line interface that also functions as a powerful scripting language to automate complex pipelines.

Q282.What term defines the logical or physical endpoint of an inter-process communication (IPC) flow across a computer network?

Easy
A Port
B Socket
C Machine
D Pipe
Network Basics PPSC

Correct Answer: B

A socket is an endpoint in network communication defined by an IP address and a port number, enabling bidirectional data flow.

Q283.What test was originally named and conceptualized by Alan Turing in 1950 as the 'imitation game'?

Easy
A The Turing Test
B LISP
C The Logic Theorist
D Cybernetics
Network Basics PPSC

Correct Answer: A

Alan Turing's 1950 paper 'Computing Machinery and Intelligence' introduced the imitation game, which is now globally known as the Turing Test.

Q284.Which network topology is characterized by connecting every node directly to a single central hub or switch?

Easy
A Bus Network Topology
B Star Network Topology
C Ring Network Topology
D None of these
Network Basics PPSC

Correct Answer: B

In a Star topology, all network nodes connect to a central hub, making it easy to troubleshoot but dependent on the central device.

Q285.Which layer of the TCP/IP suite is functionally equivalent to the Transport Layer of the OSI reference model?

Easy
A Application
B Host-to-Host
C Internet
D Network Access
Basic Networking Terms PPSC

Correct Answer: B

The Host-to-Host layer (such as TCP/UDP) handles end-to-end communication and corresponds directly to the Transport Layer of the OSI model.

Q286.With which type of OSPF network connection will route adjacencies be established without performing a DR/BDR election?

Easy
A Point-to-point
B Backbone area 0
C Broadcast multi-access
D Non-broadcast multi-access
Network Basics PPSC

Correct Answer: A

On point-to-point links (which only connect two routers), there is no need to elect a Designated Router (DR) or Backup Designated Router (BDR).

Q287.Which of the following WAN encapsulation protocols can be successfully configured on an asynchronous serial link?

Easy
A PPP and ATM
B ATM and SDLC
C HDLC only
D SDLC and Frame Relay
Network Basics PPSC

Correct Answer: A

Asynchronous serial connections commonly use Point-to-Point Protocol (PPP) and Asynchronous Transfer Mode (ATM) encapsulations.

Q288.Which Cisco IOS command displays the configurable parameters and operational statistics for all interfaces on a router?

Easy
A show running-config
B show startup-config
C show versions
D show interfaces
Network Devices PPSC

Correct Answer: D

The 'show interfaces' command provides detailed status, bandwidth, encapsulation, and packet error statistics for all router interfaces.

Q289.What type of network security system (implemented in hardware or software) inspects all incoming and outgoing data packets?

Easy
A Firewall
B Antivirus
C Hardware
D Software
Network Basics PPSC

Correct Answer: A

A firewall filters and monitors all network packets to prevent unauthorized access based on a pre-defined set of security rules.

Q290.What type of computer network has its nodes interconnected using physical hardware switches?

Easy
A Line Switch Network
B Switched Network
C Physical Network
D Switching Network
Network Basics PPSC

Correct Answer: B

A Switched Network routes data between devices using dedicated hardware switches that forward packets to specific target destinations.

Q291.On which layer of the standard networking architecture do IP and DNS routes primarily operate?

Easy
A Hardware layer
B Network layer
C BIOS layer
D Boot layer
Network Basics PPSC

Correct Answer: B

IP routing and name resolution paths are processed at the Network Layer (Layer 3 of the OSI model).