Comptia A+ Certification Practice Test 14 (Exam 220-901)

Front 1

Which of the following is an example of a valid subnet mask?

Back 1

None of the above is a valid subnet mask

Front 2

Which of the answers listed below refers to a CIDR notation for 255.255.224.0 subnet mask?

Back 2

/19

Front 3

What is the binary representation of 255.255.128.0 subnet mask?

Back 3

11111111.11111111.10000000.00000000

Front 4

Which of the following answers lists a CIDR notation for 255.255.128.0 subnet mask?

Back 4

/17

Front 5

Information required for manual configuration of network adapter settings in MS Windows includes: (Select all that apply)

Back 5

IP address

Subnet mask

Default gateway

DNS server address

Front 6

The File Transfer Protocol (FTP) Control Connection for administering a session is established through port number:

Back 6

21

Front 7

The File Transfer Protocol (FTP) Data Connection for sending file data is established through port number:

Back 7

20

Front 8

The Secure Shell (SSH) protocol uses:

Back 8

Port 22

Front 9

Port number 23 is assigned to:

Back 9

Telnet

Front 10

Simple Mail Transfer Protocol (SMTP) operates with the use of port:

Back 10

25

Front 11

Which of the following port numbers is used by Domain Name System (DNS)?

Back 11

53

Front 12

Port number 80 is used by:

Back 12

Hypertext Transfer Protocol (HTTP)

Front 13

Post Office Protocol v3 (POP3) runs on port:

Back 13

110

Front 14

Port 143 is assigned to:

Back 14

Internet Message Access Protocol (IMAP)

Front 15

Which of the port numbers listed below is used by Hypertext Transfer Protocol over TLS/SSL (HTTPS)?

Back 15

443

Front 16

A network technician uses a Remote Desktop Protocol (RDP) client on their Windows OS in order to remotely troubleshoot a problem on another Windows machine. Which of the following ports needs to be opened for the built-in Windows RDP server to allow this type of network connection?

Back 16

3389

Front 17

Which of the following port numbers are reserved for NetBIOS services? (Select all that apply)

Back 17

137

138

139

Front 18

Port 445 is used by: (Select 2 answers)

Back 18

Server Message Block (SMB)

Common Internet File System (CIFS)

Front 19

What is the port number for Service Location Protocol (SLP)?

Back 19

427

Front 20

Which of the port numbers listed below is used by an Apple-proprietary file sharing protocol?

Back 20

548

Front 21

What is the function of POP3?

Back 21

Retrieving email messages from a mail server

Front 22

IMAP4 is used for:

Back 22

Retrieving email messages from a mail server

Front 23

A secure version of the HTTP protocol offering traffic encryption is known as: (Select all that apply)

Back 23

HTTP over SSL

HTTP over TLS

HTTPS

Front 24

A Microsoft-proprietary protocol providing a user with a graphical interface for connecting to another computer over a network is known as:

Back 24

RDP

Front 25

Which of the following would be in use when a WINS server tries to resolve a host name into an IP address on a Windows-based LAN?

Back 25

NetBIOS