CompTIA A+ Certification Exam 220-1101 Practice Test 4 Flashcards
Which of the following protocols runs on TCP port 445?
SMB/CIFS
A network technician uses Remote Desktop Protocol (RDP) client on their Windows OS 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?
TCP port 3389
Transmission Control Protocol (TCP) is a connection-oriented protocol using a three-way handshake, which is a set of initial steps required to establish network connection. TCP supports retransmission of lost packets, flow control (managing the amount of data that is being sent), and sequencing (rearranging packets that arrived out of order). (True / False)
True
User Datagram Protocol (UDP) is an example of a connectionless protocol. Because UDP does not support a three-way handshake while establishing a network connection, it is referred to as an unreliable or best-effort protocol. (True / False)
True
Examples of connectionless protocols include:
DHCP
TFTP
Which of the following answers refer to connection-oriented protocols?
SSH
HTTPS
Which of the answers listed below refer to common applications that make use of TCP?
File transfer
Email communication
Web browsing
Which of the following answers refer(s) to common applications of UDP?
Video conferencing
Live streaming
Online gaming
Voice over IP (VoIP)
A device designed to filter and transfer data packets between dissimilar types of computer networks is called:
Router
Which of the answers listed below refers to a data-link layer device designed to forward frames between network segments?
Switch
A type of layer 2 network switch with configuration features that can be modified through a user interface is known as:
Managed switch
An infrastructure device designed for connecting wireless/wired client devices to a network is commonly referred to as:
Access Point (AP)
A simple device consisting of multiple connector blocks and ports used for cable management is known as:
Patch panel
Which of the following answers refers to a software or hardware that monitors network traffic and depending on the configuration settings applied to each data packet either blocks it or allows it to pass through?
Firewall
A solution that allows to supply electricity over standard Ethernet cables is known as: (Select 2 answers)
PoE
IEEE 802.3af
Which of the following answers refers to a dedicated device designed for supplying power over Ethernet cabling?
Injector
Which IEEE standard implements PoE+?
IEEE 802.3at
The IEEE 802.3bt standard implements:
PoE++
4PPoE
The disadvantage from using this device results from the fact that any incoming signal on any of its ports is re-created and sent out on any connected ports which has a negative impact on network performance.
Hub
A network segment utilizing only this type of device is the most prone to network performance degradation due to large number of network collisions.
Hub
Which of the following answers refer to the characteristic features of cable modems? (Select 3 answers)
Cabling that carries TV signals
Coaxial cabling
Shared bandwidth
Which of the answers listed below apply to DSL modems? (Select 3 answers)
Dedicated bandwidth
Twisted-pair copper cabling
Telephone lines
Which type of fiber-optic equipment can be found at a demarc?
ONT
Which of the following answers refers to a computer’s hardware component designed for enabling network access?
NIC
Which of the answers listed below refers to a technology designed to simplify network infrastructure management?
SDN
