Network+ Chapter 6

Question 1

What does File Transfer Protocol (FTP) do and what are it’s corresponding port number(s)?

Answer 1

It lets you transfer files across an IP network. 20,21

Question 2

What does Secure File Transfer Protocol (SFTP) do and what are it’s corresponding port number(s)?

Answer 2

It lets you transfer files across an encrypted connection. 22

Question 3

What does Simple Mail Transfer Protocol (SMTP) do and what are it’s corresponding port number(s)?

Answer 3

It lets you to send mail over an IP network. 25

Question 4

What does Post Office Protocol (POP) do and what are it’s corresponding port number(s)?

Answer 4

It gives you a storage facility for your incoming mail over the IP network. 110

Question 5

What does Remote Desktop Protocol (RDP) do and what are it’s corresponding port number(s)?

Answer 5

It allows you to connect to another computer remotely and run programs. 3389

Question 6

What does Transport Layer Security (TLS) do and what are it’s corresponding port number(s)?

Answer 6

It’s a cryptographic protocol that allow for enabling secure online data-transfer activities. 995

Question 7

What does Dynamic Host Configuration Protocol (DHCP) do and what are it’s corresponding port number(s)?

Answer 7

It assigns an IP address to hosts with information provided by a server. 67,68

Question 8

What is some information you can find on a DHCP server?

Answer 8

IP address, Subnet mask, Domain name, Default gateway, DNS, Windows Internet Naming Service (WINS) information

Question 9

What does Transmission Control Protocol (TCP) do?

Answer 9

This protocol takes large blocks of information from an application and breaks them down into segments. This is a connection-oriented protocol.

Question 10

What does User Datagram Protocol (UDP) do?

Answer 10

This protocol transports information that doesn’t require reliable delivery. This is a connectionless protocol.

Question 11

What does Internet Control Message Protocol (ICMP) do?

Answer 11

This is a management protocol and messaging service provider. They can provide hosts with information about network problems. They are encapsulated within IP datagrams.

Question 12

What programs are used to verify address configurations in your network?

Answer 12

Ping and Traceroute

Question 13

What does Address Resolution Protocol (ARP) do?

Answer 13

It finds the hardware address of a host from a known IP address.

Question 14

What does Reverse Address Resoluton Protocol (RARP) do?

Answer 14

This protocol discovers the identity of the IP address for diskless machines by sending out a packet that includes its MAC address and a request for the IP address assigned to that MAC address.

Question 15

Define encapsulation

Answer 15

Wrapping protocol information over a packet at each OSI layer.