Practice Test 9 Flashcards
The IEEE 802.11n standard specifies available channel bandwidth options of: (Select 2 answers)
- 20 MHz
- 22 MHz
- 40 MHz
- 80 MHz
- 160 MHz
20 MHz
40 MHz
The IEEE 802.11ac standard specifies a maximum channel bandwidth of:
- 20 MHz
- 22 MHz
- 40 MHz
- 80 MHz
- 160 MHz
160 MHz
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
True
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
Multi-User MIMO (MU-MIMO)
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
Yagi antenna
Dish antenna
Parabolic 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
Dipole antenna
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
Omnidirectional antenna
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)
Power level controls
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
Wireless site survey
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
SaaS
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
PaaS
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
IaaS
A type of cloud infrastructure available solely for a single organization is known as:
- Public cloud
- Community cloud
- Hybrid cloud
- Private cloud
Private 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
Public Cloud
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
True
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
IPsec
SSL/TTS encryption
VPN
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
CASB
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
DNS server
Which of the DNS database records listed below returns a 32-bit IP address?
- MX
- AAAA
- CNAME
- A
- PTR
A
The DNS database AAAA record creates a pointer that maps a hostname to:
- IPv4 address
- Mail server
- IPv6 address
- Canonical name
IPv6 address
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
- Provides outside services with additional information about a domain
- Not used to direct any traffic
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
SPF
DKIM
Which DNS record specifies a host and port information that allow to find specific services on a network?
- SRV
- NS
- PTR
- DKIM
SRV
Which of the following DNS database records maps a domain name to a list of mail servers for that domain?
- NS
- SPF
- MX
- PTR
MX
