Networking

Question 1

A type of cryptographic network protocol for secure data communication, remote command-line login, remote command execution, and other secure network services between two networked computers is known as:

• TFTP
• SSH
• Telnet
• RDP

Answer 1

• SSH:

Secure Shell (SSH) protocol is a method for securely sending commands to a computer over an unsecured network. SSH uses cryptography to authenticate and encrypt connections between devices.

Question 2

Telnet: (Select 3 answers)

• Encrypts network connection
• Provides username & password authentication
• Transmits data in an unencrypted form
• Does not provide authentication
• Enables remote login and command execution

Answer 2

• Provides username & password authentication
• Transmits data in an unencrypted form
• Enables remote login and command execution

Remember Telnet is UNENCRYPTED!

Question 3

Which of the answers listed below refers to a secure replacement for Telnet?

-CHAP
- FTP
- SNMP
- SSH

Answer 3

• SSH is a secure alternative for Telnet

Secure Shell (SSH) protocol is a method for securely sending commands to a computer over an unsecured network. SSH uses cryptography to authenticate and encrypt connections between devices.

Question 4

The SMTP protocol is used for: (Select 2 answers)

• Sending email messages between mail servers
• Name resolution services
• Serving of web pages
• Retrieving email messages from mail servers
• Sending email messages from a client device

Answer 4

• Sending email messages between mail servers
• Sending email messages from a client device

Simple Mail Transfer Protocol (SMTP): Remember SMTP is for SENDING!

Question 5

Which of the following answers refers to a system containing mappings of domain names to various types of data, such as numerical IP addresses?

• TCP/IP
• DNS
• SQL
• DHCP

Answer 5

• DNS

Domain Name System contains mappings of DOMAIN NAMES

Question 6

A network protocol providing an alternative solution to the manual allocation of IP addresses is known as:

• DNS
• SNMP
• NAT
• DHCP

Answer 6

• DHCP: Dynamic Host Configuration Protocol

Is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway.

Question 7

Which network protocol enables retrieving contents of an Internet page from a web server?

• SNMP
• HTTP
• SMTP
• IMAP

Answer 7

• HTTP:

The Hypertext Transfer Protocol (HTTP) is the foundation of the World Wide Web, and is used to load webpages using hypertext links.

HTTP is an application layer protocol designed to transfer information between networked devices and runs on top of other layers of the network protocol stack.