CompTIA Network+ Practice Test 9

SaaS

A cloud computing service model offering remote access to applications based on monthly or annual subscription fee is called: PaaS SaaS IaaS MaaS

True

A cloud delivery model consisting of two or more interlinked cloud infrastructures (private, community, or public) is referred to as a hybrid cloud. True False

Private cloud

A type of cloud infrastructure available solely for a single organization is known as: Public cloud Community cloud Hybrid cloud Private cloud

DNS server

In order to connect to a website and display its contents, a URL entered in the web browser address bar needs to be translated into an IP address. Which of the servers listed below is used to handle this type of request? ICS server Web server DNS server DHCP server

True

Multiple Input / Multiple Output (MIMO) is a wireless technology that allows for significant increase in data throughput due to the use of multiple antennas and multiple data streams. True False

IPv6 address

The DNS database AAAA record creates a pointer that maps a hostname to: IPv4 address Mail server IPv6 address Canonical name

160 MHz

The IEEE 802.11ac standard specifies a maximum channel bandwidth of: 20 MHz 22 MHz 40 MHz 80 MHz 160 MHz

20 MHz, 40 MHz

The IEEE 802.11n standard specifies available channel bandwidth options of: (Select 2 answers) 20 MHz 22 MHz 40 MHz 80 MHz 160 MHz

Wireless site survey

The process of planning and designing new WLANs for optimal performance, security and compliance typically involves: Penetration testing Wireless site survey Vulnerability scanning End user awareness and training

Provides outside services with additional information about a domain, Not used to direct any traffic

What is the function a DNS TXT record? (Select 2 answers) Resolves an IP address to a hostname for reverse lookups Maps a domain name to a list of mail servers for that domain Provides outside services with additional information about a domain Not used to direct any traffic Allows multiple domain names to resolve to the same IP address

SRV

Which DNS record specifies a host and port information that allow to find specific services on a network? SRV NS PTR DKIM

SPF, DKIM

Which DNS records are commonly used with the DNS TXT record? (Select 2 answers) PTR CNAME SPF MX DKIM

SPF, DKIM

Which DNS records are used to protect a domain from being wrongfully identified as a source of email spam? (Select 2 answers) NS SPF CNAME DKIM SRV

Power level controls

Which WAP configuration setting allows for adjusting the boundary range of a wireless signal? SSID broadcast Power level controls Maximum Transmission Unit (MTU) Quality of Service (QoS)

A

Which of the DNS database records listed below returns a 32-bit IP address? MX AAAA CNAME A PTR

Yagi antenna, Dish antenna, Parabolic antenna

Which of the answers listed below refer to highly directional antenna type used for long-range point-to-point bridging links? (Select 3 answers) Yagi antenna Omnidirectional antenna Dish antenna Non-directional antenna Parabolic antenna Dipole antenna

IPsec, SSL/TLS encryption, VPN

Which of the answers listed below refer to methods for creating secure connections between clients and cloud service providers? (Select 3 answers) Telnet IPsec PAP SSL/TLS encryption VPN

IaaS

Which of the answers listed below refers to a cloud computing delivery model in which clients, instead of buying all the hardware and software, purchase computing resources as an outsourced service from suppliers who own and maintain all the necessary equipment and software? SaaS MaaS PaaS IaaS

Omnidirectional antenna

Which of the answers listed below refers to a common antenna type used as a standard equipment on most Access Points (APs) for indoor Wireless Local Area Network (WLAN) deployments? Omnidirectional antenna Dish antenna Unidirectional antenna Yagi antenna

MX

Which of the following DNS database records maps a domain name to a list of mail servers for that domain? NS SPF MX PTR

Public cloud

Which of the following answers refers to a cloud computing delivery model in which the cloud infrastructure is provisioned for open use by the general public? Hybrid cloud Private cloud Community cloud Public cloud

CASB

Which of the following answers refers to a security policy enforcement software tool or service placed between cloud service users and cloud applications? UTM CASB NGFW DMVPN

Multi-User MIMO (MU-MIMO)

Which of the following answers refers to the new feature introduced with the IEEE 802.11ac standard? Multiple Input / Multiple Output (MIMO) 40 MHz channel width Multi-User MIMO (MU-MIMO) Maximum data signaling rate of up to 600 Mbps

Dipole antenna, Omnidirectional antenna

Which of the following antenna types provide a 360-degree horizontal signal coverage? (Select 2 answers) Unidirectional antenna Dipole antenna Yagi antenna Omnidirectional antenna Dish antenna

PaaS

Which of the following cloud service types would provide the best solution for a web developer intending to create a web app? MaaS SaaS PaaS IaaS