CompTIA A+ 220-1001 Practice Test 5: Networking, Exams of Computer Security

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CompTIA A+ Certification Exam 220 - 1001 Practice Test 5

Exam Questions and Answers.

DHCP runs on: (Select 2 answers) A) UDP port 63 B) UDP port 65 C) UDP port 67 D) UDP port 68 E) UDP port 69 - Correct Answer C) D) TCP port 389 is the default network port for: A) RDP B) LDAP C) SMB D) LDAPS - Correct Answer B) An SNMP Agent receives requests on UDP port: A) 161 B) 138 C) 162 D) 139 - Correct Answer A) An SNMP management station receives SNMP notifications on which of the following UDP ports? A) 161 B) 137 C) 162 D) 138 - Correct Answer C) Transmission Control Protocol (TCP) is an example of a connectionless protocol. Because TCP doesn't support a three-way handshake while establishing a network connection, it is referred to as an unreliable or best-effort protocol. A) True B) False - Correct Answer B) User Datagram Protocol (UDP) is a connection-oriented protocol using a three-way handshake, a set of initial steps required to establish a network connection. UDP 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).

A) True B) False - Correct Answer B) A device designed to filter and transfer IP packets between dissimilar types of computer networks is called a: A) Proxy B) Hub C) Switch D) Router - Correct Answer D) Which device improves network performance by dividing a given network segment into separate collision domains? A) Hub B) Repeater C) Switch D) Router - Correct Answer C) A network switch with configuration features that can be modified via a user interface is a: A) Virtual switch B) Multilayer switch C) PoE switch D) Managed switch - Correct Answer D) An infrastructure device designed for connecting wireless/wired client devices to a network is known as a(n): A) Captive portal B) Access Point (AP) C) Intermediate Distribution Frame (IDF) D) Active hub - Correct Answer B) Software or hardware that checks information coming from the Internet and either blocks it or allows it to pass through depending on the applied configuration settings is called: A) Antivirus B) Firewall C) NAC D) Antispyware - Correct Answer B) Which of the following is a computer hardware component designed to enable network access?

A) CPU

B) PSU

C) NIC

D) GPU - Correct Answer C) Which of the following is a simple network device that amplifies a received signal so it can be transmitted over greater distance without loss of quality? A) Patch panel B) Multiplexer C) Repeater D) Passive hub - Correct Answer C) The main disadvantage of using this device is its negative impact on network performance, resulting from the fact that any incoming signal on any of its ports is re- created and sent out on any connected ports. A) Router B) Switch C) Bridge D) Hub - Correct Answer D) Network connections implemented with the use of a cable modem take advantage of: (Select 3 answers) A) Cabling that carries TV signals B) Telephone lines C) Coaxial cabling D) Shared bandwidth E) Twisted-pair copper cabling F) Dedicated bandwidth - Correct Answer A) C) D) Which of the following describe characteristics of DSL modems? (Select 3 answers) A) Dedicated bandwidth B) Cabling that carries TV signals C) Shared bandwidth D) Twisted-pair copper cabling E) Telephone lines F) Coaxial cabling - Correct Answer A) D) E) Which of the following describe the features of a network bridge? (Select 3 answers) A) Forwarding decisions made in hardware (ASIC) B) Newer and more effective type of network device in comparison to network switch

C) Typically capable of connecting more network segments than switch (more physical ports) D) Forwarding decisions made in software E) Typically capable of connecting fewer network segments than switch (fewer physical ports) F) Older and less effective type of network device in comparison to network switch - Correct Answer D) E) F) What are the characteristic traits of a network switch? (Select all that apply) A) Forwarding decisions made in hardware (ASIC) B) Typically capable of connecting more network segments than bridge (more physical ports) C) Older and less effective type of network device in comparison to network bridge D) Forwarding decisions made in software E) Sometimes referred to as multiport bridge F) Newer and more effective type of network device in comparison to network bridge G) Typically capable of connecting fewer network segments than bridge (fewer physical ports) - Correct Answer A) B) E) F) A simple device consisting of multiple connector blocks and ports used for cable management is a: A) Media converter B) Demarc C) Main Distribution Frame (MDF) D) Patch panel - Correct Answer D) Which of the following acronyms describes using a single twisted-pair Ethernet cable to carry both data and electrical power? A) EPP B) PoE C) ECP D) PLC - Correct Answer B) Which of the following is a dedicated device designed to supply power to PoE equipment? A) Inverter B) Power Supply Unit (PSU) C) Injector D) Uninterruptible Power Supply (UPS) - Correct Answer C) A type of technology that enables sending data over wiring used for transmission of electrical power is known as:

A) PLC

B) ECP

C) PoE D) EPP - Correct Answer A) In addition to its native routing functionality, a SOHO router is an all-in-one device that can serve the same purposes as many other devices. It can provide the functionality of a network switch and an Access Point (AP). A SOHO router can also provide extensive network configuration options that include a DHCP, firewall, and wired/wireless security settings. A) True B) False - Correct Answer A) A unique WLAN identifier (a.k.a. wireless network name) is called a(n): A) EUI B) SSID C) OUI D) CNAME - Correct Answer B) Which of the following acronyms is used in an emerging field of new technologies, such as wearable tech or home automation? A) SoC B) NFC C) IoT D) ESN - Correct Answer C)