Practice Test 4

Question 1

Which port enables the SMB/CIFS Protocol for accessing file shares and printers?

Answer 1

TCP (Transmission Control Protocol) port 445

Question 2

Which ports needs to be opened for the built-in Windows RDP server to allow network connection?

Answer 2

TCP (Transmission Control Protocol) port 3389

Question 3

What are the Characteristics of Transmission Control Protocol (TCP).

Answer 3

TCP supports: retransmission of lost packets, the amount of data that is being sent (Flow Control) and rearranging packets that arrived out of order (Sequencing).

Question 4

What are the Characteristics of User Datagram Protocol (UDP).

Answer 4

Is a connectionless protocol, it is referred to as an unreliable or a best-effort protocol.

Question 5

Examples of UDP Connectionless Protocols are:

Answer 5

DHCP (Dynamic Host Configuration Protocol) and TFTP (Trivial File Transfer Protocol)

Question 6

Examples of TCP Connection-Orientated Protocols are:

Answer 6

SSH and HTTPS

Question 7

Examples of Applications that make use of TCP Connection-Orientated Protocols:

Answer 7

File Transfers, Email Communication and Web Browsing.

Question 8

Examples of Applications that make use of UDP Connection-Orientated Protocols:

Answer 8

Video Conferencing, Live Streaming, Online Gaming and Voice Over IP (VoIP)

Question 9

What refers to a data-link layer device designed to forward frames between network segments?

Answer 9

A Switch

Question 10

An infrastructure device designed for connecting wireless/wired client devices to a network is know as a?

Answer 10

Access Point (AP)

Question 11

A solution that allows to supply electricity over standard Ethernet cables is known as:

Answer 11

IEEE 802.3af / PoE (15W)

Question 12

Which IEEE standard implements PoE+?

Answer 12

IEEE 802.at (30W)

Question 13

The PoE++ standard implements:

Answer 13

IEEE 802.3bt (60W -100W)

Question 14

Disadvantage of using a Network Hub?

Answer 14

It has a Negative impact on network performance, any incoming signal on any of its ports is re-created and sent out on any connected ports. It is prone to network performance degradation due to large number of network collisions.

Question 15

What are the Characteristics of Cable Modems?

Answer 15

The cables that are Coaxial (Used in CCTV still), carries TV signals, shares Bandwidth (Used in Bus Networks).

Question 16

What are the Characteristics of DSL (Digital Subscriber Line) Modems?

Answer 16

They work with Dedicated Bandwidth and Twisted-Pair Copper Cabling, and are for Telephone Lines.

Question 17

What can be found at a fiber optic network provider’s demarcation point (where the provider’s network (and responsibility) ends and that of the customer begins)?

Answer 17

An ONT (Optical Network Terminal), where fiber optic is translated into copper cabling.

Question 18

What technology is designed to simplify network infrastructure management?

Answer 18

SDN (Software Defined Networking).