D315 - Network and Security - Foundations Questions with CORRECT Answers (Grade A+)

D315 - Network and Security - Foundations Questions with
CORRECT Answers (Grade A+)
Question 1:
802.11a/Wireless-A

Answer:
wireless 5GHz - 54Mbps - *75ft*


Question 2:
802.11b/Wireless-B

Answer:
wireless 2.4GHz - *11Mbps* - 100-150ft


Question 3:
802.11g/Wireless-G

Answer:
2.4GHz - *54Mbps - 150ft*


Question 4:
802.11ac/Wireless-AC

Answer:
5GHz - *1.3Gbps*


Question 5:
802.11n/Wireless-N

Answer:
2.4GHz - *200+Mbps*


Question 6:
2.4GHz

Answer:

, Frequency ranges of 802.11G/802.11B


Question 7:
5GHz

Answer:
Frequency ranges of 802.11AC/802.11A


Question 8:
Application Layer

Answer:
Layer 7 in the OSI model. Support for applications. Examples: HTTP, FTP,
SMTP


Question 9:
Presentation Layer

Answer:
Layer 6 in the OSI model. Protocol conversion, data translation. Examples:
ASCII, JPEG


Question 10:
Session Layer

Answer:
Layer 5 in the OSI model. Establishes, manages, and terminates sessions.
Examples: NFS, SQL


Question 11:
Transport Layer

Answer:
Layer 4 in the OSI model. Ensures error-free packets. Examples: TCP, UDP


Question 12:
Network Layer