Computer Networks Subcategories

Basics	Network Layer
Freshers	Ripv1
Http	Application Layer
Cookie	Internet
Entrance Exams	Analyzing Subnet Mask
Ipv4 Ipv6 Comparison	Ipv4
Experienced	Dv Routing Algorithms
Http Ftp	Port
Campus Interviews	Computer Networks
Frame Relay 2	Atm Frame Relay
Network Topology Set 2	Snmp Operations
Snmp	Topology
Mac Address	Reliable Data Transfer
Acl	Mail Access Protocols
Routers Functionalities Basics	Ls Routing Algorithms
Cidr	Vlan
Bgp	Broadcast Routing
Hierarchical Routing	Switches Hubs
Error Detection Correction Techniques	Multiple Access Links Protocols
Symmetric Key Cryptography	Public Key Cryptography
Hash Functions	Digital Signatures
Cisco Lan Switches	Ipv6
Smtp	Access Networks
Mcqs	Sonet
Ftp	Aptitude Test
Physical Layer	Telnet
Web Caching	Network Security Encryption
Quiz	Online Quiz
Online Test	Ipsecurity
Security	Ospf
Firewall	Ethernet
Wireless Lan	Network Utilities
Bluetooth	Wimax
Rtp	Rpc
Eigrp 2	Reference Models
Data Link Layer	Transport Layer
Multiplexing	Packet Circuit Switching
Delays Loss	Network Attacks
Tcp	Udp
Virtual Circuit	Congestion Control
Test	World Wide Web
Icmp	Cryptography
Ip Routing 2	Physical Media
Dns	Dhcp
Ssh	Internetworking

Secure shell (SSH) network protocol is used for __________

A. Secure data communication
B. Remote command-line login
C. Remote command execution
D. All of the mentioned

Explanation: SSH provides high encryption and security features while communicating through a network. It is a cryptographic network protocol.

SSH can be used in only _____________

A. Unix-like operating systems
B. Windows
C. Both unix-like and windows systems
D. None of the mentioned

Explanation: SSH isn’t confined to a certain network or operating system. It can be implemented over different networks and on different operating systems.

SSH uses ___________ to authenticate the remote computer.

A. Public-key cryptography
B. Private-key cryptography
C. Any of public-key or private-key
D. Both public-key & private-key

Explanation: Public encryption key is slower but more flexible. Every cryptographic security system requires a private key for private access and a public key for location.

Which standard TCP port is assigned for contacting SSH servers?

A. Port 21
B. Port 22
C. Port 23
D. Port 24

Explanation: Port 22 is used for contacting ssh servers, used for file transfers (scp, sftp) and also port forwarding.

Which one of the following protocol can be used for login to a shell on a remote host except SSH?

A. Telnet
B. Rlogin
C. Both telnet and rlogin
D. None of the mentioned

Explanation: SSH is more secured then telnet and rlogin.

Which one of the following is a file transfer protocol using SSH?

A. Scp
B. Sftp
C. Rsync
D. All of the mentioned

Explanation: SCP (Secure copy protocol), SFTP (SSH File Transfer Protocol) and Rsync all are file transfer protocols which are used by SSH.

SSH-2 does not contain ______________

A. Transport layer
B. User authentication layer
C. Physical layer
D. Connection layer

Explanation: SSH2 is a more secure, portable and efficient version of SSH that includes SFTP, which is functionally similar to FTP, but is SSH2 encrypted.

Which one of the following feature was present in SSH protocol, version 1?

A. Password changing
B. Periodic replacement of session keys
C. Support for public-key certificates
D. None of the mentioned

Explanation: All of the mentioned features are provided by SSH-2 and that SSH-1 only provide strong authentication and guarantee confidentiality.

SCP protocol is evolved from __________ over SSH.

A. Rcp protocol
B. DHCP protocol
C. Mgcp protocol
D. Gcp protocol

Explanation: RCP is the abbreviation for Rate Control Protocol is a congestion control algorithm for fast user response times.

Which one of the following authentication method is used by SSH?

A. Public-key
B. Host based
C. Password
D. All of the mentioned

Explanation: SSH used public key authentication, Password authentication, Host based authentication, keyboard authentication and authentication of servers.