Computer Knowledge

Computer Networks

2,461 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 technology web technology
  1. 143

  2. 1433

  3. 1432

  4. 142

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

SQL Server's default TCP/IP port for the Database Engine is 1433. The default instance listens on port 1433, while named instances use dynamic ports unless explicitly configured. Option A is missing a digit, C has an extra digit, and D is completely wrong.

Multiple choice technology operating systems
  1. /etc/hosts

  2. /etc/hosts.allow

  3. /etc/hosts.deny

  4. /etc/hosts.test

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The /etc/hosts file is used for hostname to IP address mapping. It contains lines in the format 'IP_address hostname aliases' and is consulted before DNS queries. The /etc/hosts.allow and /etc/hosts.deny files are used by TCP wrappers for access control (which hosts can connect to which services), not for name resolution. /etc/hosts.test is not a standard Unix file.

Multiple choice technology performance
  1. Router

  2. Firewall

  3. Switch

  4. All of them

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

MRTG (Multi Router Traffic Grapher) is a network monitoring tool that can monitor various network devices including routers, firewalls, and switches through SNMP protocol. It generates graphical representations of network traffic.

Multiple choice technology
  1. 74.125.127.100

  2. 69.72.169.241

  3. 192.168.1.100

  4. 209.131.36.100

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

192.168.1.100 is in the private IP address range 192.168.0.0/16, which is reserved for local networks according to RFC 1918. The other options are public IP addresses assigned to various internet services. Private IP ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16) are not routable on the public internet.

Multiple choice technology web technology
  1. TCP/IP

  2. PKI

  3. Secure Socket Layer (SSL)

  4. HTTPS

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

SSL (Secure Socket Layer) is the protocol Tomcat supports for encrypting data transmitted over the network. SSL and its successor TLS provide the encryption layer for secure HTTPS connections. TCP/IP is the underlying transport protocol, PKI is the infrastructure for managing keys, and HTTPS is the application-level protocol that uses SSL/TLS.

Multiple choice technology web technology
  1. setserial /dev/ttyS0 irq 4 autoconfig

  2. setserial /dev/ttyS0 irq 4

  3. setserial /dev/ttyS1 irq 4 autoconfig

  4. setserial /dev/ttyS1 irq 4

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

COM1 corresponds to /dev/ttyS0, and the correct setserial syntax includes 'autoconfig' to auto-detect other parameters after setting IRQ 4. /dev/ttyS1 would be COM2.

Multiple choice technology web technology
  1. Configure a proxy server such as Tivoli Access Manager (TAM)

  2. Enable server affinity for each HTTP server in the cluster

  3. Implement the caching proxy server component of the WebSphere Edge

  4. se an IP sprayer from the load balancing component of the WebSphere Edge Components

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

To load balance HTTP traffic across Web servers, an IP sprayer (from WebSphere Edge Components load balancing module) distributes incoming requests across multiple servers. Option A (TAM) is for authentication/authorization, not load balancing. Server affinity (B) is a sticky session policy, not load balancing itself. Caching proxy (C) caches content but doesn't spray IP traffic.

Multiple choice technology storage
  1. load balancing

  2. mixed zoning

  3. mirroring

  4. virtualization

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mixed zoning is a configuration in Fibre Channel switches where both Port-based zoning (physical port on the switch) and World Wide Name (WWN) zoning (unique identifier of the HBA/storage) are utilized within the same zone set. This provides flexibility in managing fabric security and connectivity.

Multiple choice technology security
  1. File Tracing Protocol

  2. File Transfer Protocol

  3. Firewall Technology Protocol

  4. Firewall Technology Prevention

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

FTP stands for File Transfer Protocol, a standard network protocol used for the transfer of computer files between a client and server on a computer network. The other options are incorrect.

Multiple choice technology
  1. http://, https://, ftp://

  2. http://, https://, mailto://

  3. Either I or II, but not I and II

  4. Any Protocol, fully customizable

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Livelink supports multiple protocols and is highly customizable, not limited to specific protocol sets. Option D correctly states that it supports any protocol with full customization capability. Options A and B list specific protocols but are incomplete. Option C incorrectly tries to combine them exclusively.

Multiple choice technology enterprise content management
  1. Replicate the RM locally

  2. Increase the band Width of Network

  3. Enable LAN cache

  4. Refresh the Encryption key Faster

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Enabling LAN cache creates a local cache of frequently accessed resources, reducing latency for geographically distributed Resource Managers. This provides faster response times without requiring full local replication or expensive network upgrades.