Networking Practice Questions

Question 1

When using TCP, two hosts first establish a connection through a three-way handshake. This handshake process is established in the following order:

Answer 1

-The first host sends a SYN packet asking to create a new session.
-The receiving host replies with a SYN-ACK packet acknowledging that the session can be created.
-The first host replies with the ACK packet, which then opens the session.

Question 2

Each packet contains a packet header, which is a special label that defines the sender, receiver, and data chunk order.

Answer 2

true

Question 3

A SYN packet and an ACK packet are part of the TCP three-way handshake process to establish a connection between two hosts.

Answer 3

true

Question 4

Information about how to deliver the packet is the IP protocol’s responsibility.

Answer 4

true

Question 5

Trivial File Transfer Protocol (TFTP) is a simple protocol for exchanging files between two TCP/IP machines. It is not contained in a packet’s header.

Answer 5

true

Question 6

User Datagram Protocol (UDP)

Answer 6

is a Transport layer protocol that uses a simple connectionless communication model with a minimal protocol mechanism. This makes it suitable for streaming video or sound. Guaranteed data delivery is not as important as fast transmissions.

Question 7

Transport Layer Protocol (TCP)

Answer 7

is a Transport layer protocol that provides reliable, ordered, and error-checked data delivery. Guaranteed data delivery is more important than fast transmissions.

Question 8

Internet Control Message Protocol (ICMP)

Answer 8

is an Internet layer protocol used by network devices, including routers, to send error messages and operational information. For example, ICMP may state that a service is unavailable or a host couldn’t be reached.

Question 9

File Transfer Protocol (FTP)

Answer 9

is an Application layer protocol used to transfer computer files between hosts.

Question 10

Domain Name System

Answer 10

(DNS)

Question 11

Dynamic Host Configuration Protocol

Answer 11

(DHCP)

Question 12

Lightweight Directory Access Protocol

Answer 12

(LDAP)

Question 13

Simple Network Management Protocol

Answer 13

(SNMP)

Question 14

Clients use DHCP to request an IP address, and servers use DHCP to provide an IP address.

Answer 14

true

Question 15

SNMP

Answer 15

is used to collect information about managed devices on IP networks. SNMP can also modify settings to change a network device’s behavior.

Question 16

LDAP

Answer 16

is used to access and maintain distributed directory information services.

Question 17

DNS

Answer 17

associates readily recognizable domain names to numerical IP addresses.

Question 18

DHCP

Answer 18

is used by clients to request an IP address and by a server to offer an IP address.

Question 19

SMB

Answer 19

is used for shared access to files and miscellaneous communications between hosts on a network. This protocol also provides an authenticated inter-process communication mechanism.

Question 20

SSH

Answer 20

allows network services to communicate securely over an unsecure network (for example, secure remote login to computer systems by users).

Question 21

File Transfer Protocol (FTP)

Answer 21

It enables file transfers and supports user authentication

Question 22

Simple Network Management Protocol (SNMP)

Answer 22

is used to remotely monitor and manage network devices and hosts.

Question 23

Simple Mail Transfer Protocol (SMTP)

Answer 23

is used to transfer email message from email clients to email servers.

Question 24

Trivial File Transfer Protocol (TFTP)

Answer 24

also enables file transfer but does not support user authentication.

Question 25

Lightweight Directory Access Protocol (LDAP)

Answer 25

allows access to information about network resources stored in a directory server.

Question 26

Secure Shell (SSH)

Answer 26

allows users to securely access a remote computer system’s console prompt.

Question 27

IMAP

Answer 27

allows a mail server to keep a copy of a user’s messages on the server after they’re downloaded to the mail client.

Question 28

SMTP

Answer 28

allows a user to send email to a server, but it can’t be used to retrieve messages from the server.

Question 29

A POP3 server

Answer 29

is also used by a mail client to retrieve messages from a mail server, but it requires that the messages be deleted from the server after they’ve been downloaded.

Question 30

NTP

Answer 30

synchronizes all network computer clocks.

Question 31

Server Message Block (SMB)

Answer 31

is used by Windows systems to access shared resources over the network.

Question 32

Lightweight Directory Access Protocol (LDAP)

Answer 32

is used to access information stored in a server’s directory service.

Question 33

Remote Desktop Protocol (RDP)

Answer 33

is used to access remote systems’ desktops.

Question 34

Secure File Transfer Protocol (SFTP)

Answer 34

is used to securely transfer files between hosts.

Question 35

The Windows proprietary network protocol that allows the technician to open a graphical interface to connect with the user’s Windows computer is

Answer 35

Remote Desktop Protocol (RDP). By default, RDP uses port 3389.

Question 36

HTTP

Answer 36

uses port 80.

Question 37

HTTPS

Answer 37

uses port 443.

Question 38

IMAP

Answer 38

email clients use port 143.