Practice Test 9

Question 1

The IEEE 802.11n standard specifies available channel bandwidth options of: (Select 2 answers)

• 20 MHz
• 22 MHz
• 40 MHz
• 80 MHz
• 160 MHz

Answer 1

20 MHz

40 MHz

Question 2

The IEEE 802.11ac standard specifies a maximum channel bandwidth of:

• 20 MHz
• 22 MHz
• 40 MHz
• 80 MHz
• 160 MHz

Answer 2

160 MHz

Question 3

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

Answer 3

True

Question 4

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

Answer 4

Multi-User MIMO (MU-MIMO)

Question 5

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

Answer 5

Yagi antenna
Dish antenna
Parabolic antenna

Question 6

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

Answer 6

Dipole antenna

Omnidirectional antenna

Question 7

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

Answer 7

Omnidirectional antenna

Question 8

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)

Answer 8

Power level controls

Question 9

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

Answer 9

Wireless site survey

Question 10

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

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

Answer 10

SaaS

Question 11

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

Answer 11

PaaS

Question 12

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

Answer 12

IaaS

Question 13

A type of cloud infrastructure available solely for a single organization is known as:

• Public cloud
• Community cloud
• Hybrid cloud
• Private cloud

Answer 13

Private Cloud

Question 14

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

Answer 14

Public Cloud

Question 15

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

Answer 15

True

Question 16

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

Answer 16

IPsec
SSL/TTS encryption
VPN

Question 17

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

Answer 17

CASB

Question 18

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

Answer 18

DNS server

Question 19

Which of the DNS database records listed below returns a 32-bit IP address?

• MX
• AAAA
• CNAME
• A
• PTR

Answer 19

A

Question 20

The DNS database AAAA record creates a pointer that maps a hostname to:

• IPv4 address
• Mail server
• IPv6 address
• Canonical name

Answer 20

IPv6 address

Question 21

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

Answer 21

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

Question 22

Which DNS records are commonly used with the DNS TXT record? (Select 2 answers)

• PTR
• CNAME
• SPF
• MX
• DKIM

Answer 22

• SPF

- DKIM

Question 23

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

Answer 23

SPF

DKIM

Question 24

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

• SRV
• NS
• PTR
• DKIM

Answer 24

SRV

Question 25

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

• NS
• SPF
• MX
• PTR

Answer 25

MX