A+ 901 Test 14

Question 1

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

Answer 1

None of the above is a valid subnet mask

Question 2

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

Answer 2

/19

Question 3

What is the binary representation of 255.255.128.0 subnet mask?

Answer 3

11111111.11111111.10000000.00000000

Question 4

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

Answer 4

/17

Question 5

Information required for manual configuration of network adapter settings in MS Windows includes:

Answer 5

IP address
Subnet mask
Default gateway
DNS server address

Question 6

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

Answer 6

21

Question 7

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

Answer 7

20

Question 8

The Secure Shell (SSH) protocol uses:

Answer 8

Port 22

Question 9

Port number 23 is assigned to:

Answer 9

Telnet

Question 10

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

Answer 10

25

Question 11

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

Answer 11

53

Question 12

Port number 80 is used by:

Answer 12

Hypertext Transfer Protocol (HTTP)

Question 13

Post Office Protocol v3 (POP3) runs on port:

Answer 13

110

Question 14

Port 143 is assigned to:

Answer 14

Internet Message Access Protocol (IMAP)

Question 15

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

Answer 15

443

Question 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?

Answer 16

3389

Question 17

Which of the following port numbers are reserved for NetBIOS services?

Answer 17

137
138
139

Question 18

Port 445 is used by:

Answer 18

Server Message Block (SMB)

Common Internet File System (CIFS)

Question 19

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

Answer 19

427

Question 20

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

Answer 20

548

Question 21

What is the function of POP3?

Answer 21

Retrieving email messages from a mail server

Question 22

IMAP4 is used for:

Answer 22

Retrieving email messages from a mail server

Question 23

A secure version of the HTTP protocol offering traffic encryption is known as:

Answer 23

HTTP over SSL
HTTP over TLS
HTTPS

Question 24

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

Answer 24

RDP

Question 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?

Answer 25

NetBIOS