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
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Named Pipes
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Shared Memory
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Virtual Interface Adapter
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TCP/IP
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.
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/etc/hosts
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/etc/hosts.allow
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/etc/hosts.deny
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/etc/hosts.test
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.
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Router
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Firewall
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Switch
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All of them
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.
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74.125.127.100
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69.72.169.241
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192.168.1.100
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209.131.36.100
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.
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TCP/IP
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PKI
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Secure Socket Layer (SSL)
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HTTPS
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.
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setserial /dev/ttyS0 irq 4 autoconfig
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setserial /dev/ttyS0 irq 4
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setserial /dev/ttyS1 irq 4 autoconfig
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setserial /dev/ttyS1 irq 4
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.
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Configure a proxy server such as Tivoli Access Manager (TAM)
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Enable server affinity for each HTTP server in the cluster
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Implement the caching proxy server component of the WebSphere Edge
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se an IP sprayer from the load balancing component of the WebSphere Edge Components
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.
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load balancing
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mixed zoning
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mirroring
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virtualization
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.
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File Tracing Protocol
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File Transfer Protocol
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Firewall Technology Protocol
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Firewall Technology Prevention
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.
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http://, https://, ftp://
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http://, https://, mailto://
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Either I or II, but not I and II
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Any Protocol, fully customizable
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.
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Replicate the RM locally
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Increase the band Width of Network
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Enable LAN cache
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Refresh the Encryption key Faster
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.
A
Correct answer
Explanation
Common Internet File System (CIFS), a dialect of SMB, is the standard network sharing protocol used by Windows clients to communicate with NAS devices.
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Sender
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Receiver
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Sender/Receiver pair
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SVRCONN
D
Correct answer
Explanation
A Server Connection (SVRCONN) channel is a two-way channel type used to connect an MQ client application running on a remote machine to a queue manager.
B
Correct answer
Explanation
The default port for the IBM MQ listener is 1414. Other ports like 80 are standard HTTP ports, and 1415 or 1416 are not the default listener ports.