CompTIA A+ Certification Exam 220-1101 Practice Test 5 Flashcards
Frequency bands used by 802.11 networks include: (Select 2 answers)
5.0 GHz
2.4 GHz
A common example of channel overlapping in wireless networking would be the 2.4 GHz band used in 802.11 networks, where the 2.401 - 2.473 GHz frequency range is used for allocating 11 channels, each taking up a 22-MHz portion of the available spectrum. Setting up a wireless network to operate on a non-overlapping channel (1, 6, and 11 in this case) allows multiple networks to coexist in the same area without causing interference.
True
Which of the following answers refer to the characteristics of Bluetooth? (Select 3 answers)
2.4 GHz frequency range
Used for connecting devices in a WPAN
Short-range wireless technology
What are the characteristic features of the IEEE 802.11a wireless standard? (Select 2 answers)
Maximum data signaling rate of 54 Mbps
5.0 GHz frequency band
Which of the answers listed below refer to the IEEE 802.11b wireless standard? (Select 2 answers)
Maximum data signaling rate of 11 Mbps
2.4 GHz frequency range
Which of the following answers refer to the IEEE 802.11g wireless standard? (Select 2 answers)
Maximum data signaling rate of 54 Mbps
2.4 GHz frequency range
Multiple Input / Multiple Output (MIMO) is a wireless technology that allows for significant increase in wireless data throughput due to the use of multiple antennas and multiple data streams.
True
The characteristic features of the IEEE 802.11n wireless standard include: (Select all that apply)
Multiple Input / Multiple Output (MIMO)
2.4 GHz frequency band
5.0 GHz frequency band
Maximum data signaling rate of up to 600 Mbps
Which of the following answers refers to the features of the IEEE 802.11ac (WiFi 5) wireless standard? (Select 3 answers)
5.0 GHz frequency band
Maximum data signaling rate of up to 6.933 Gbps
Multi-User Multiple Input / Multiple Output (MU-MIMO)
What are the characteristics of the IEEE 802.11ax (WiFi 6) wireless standard? (Select all that apply)
5.0 GHz frequency band
Multi-User Multiple Input / Multiple Output (MU-MIMO)
2.4 GHz frequency band
Maximum data signaling rate of up to 9.607 Gbps
Which of the following antenna types would be the least suitable for long-range point-to-point bridging links?
Omnidirectional antenna
Which of the answers listed below refers to example of an unlicensed wireless frequency band?
All of the above
(900 MHz)
(2.4 GHz)
(5 GHz)
(5.8 GHz)
Which of the following answers refer to directional antenna types suitable for long-range point-to-point bridging links? (Select 3 answers)
Yagi antenna
Dish antenna
Parabolic antenna
Which wireless technology enables identification and tracking of tags attached to objects?
RFID
A type of identification badge that can be held within a certain distance of a reader to authenticate the badge holder is called:
RFID badge
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?
DNS server
Which of the following server types is used for automatic allocation of IP addresses on a network?
DHCP server
A dedicated file server is also referred to as:
FTP server
IPP, LPD/LPR, and SMB/CIFS are examples of protocols that enable what kind of network service?
Printing
What is the function of an SMTP server?
Email handling
Which type of server is used for collecting diagnostic and monitoring data from networked devices?
Syslog server
What is the function of an HTTP server?
Serving of web pages
Which part of the AAA security architecture deals with the verification of the identity of a person or process?
Authentication
Which of the answers listed below refers to the process of granting or denying access to resources?
Authorization
In the AAA security architecture, the process of tracking accessed services as well as the amount of consumed resources is called:
Accounting
