Hi,
Can anyone tell me if I have picked the correct TRUE statements ..
From the pairs of terms given below, choose the option that offers, in the correct order, the most appropriate pair for the blanks in the following statement.
_______DHCP_ is a protocol that enables network devices to share a pool of IP addresses. This protocol operates at the __________Application__ layer of the OSI model.
A
DNS network
B
DNS session
C
DHCP network
D
DHCP application
E
SMTP application
F
SMTP session
I believe the correct answer to be D
Select two true answers from
A
The ISM band is the name given to a band of radio frequencies running
from exactly 2.4 MHz to exactly 2.4835 MHz. No - GHz
B
Channels 6, 8 and 10 are non-overlapping 802.11g Wi-Fi channels. No
C
A wireless node with a single transmit/receive antenna is unable to use the CSMA/CD protocol.
D
Wireless network management overheads are increased when nodes operate at the fringes of the wireless range.
E
Channel bonding, frame aggregation and block acknowledgement are
methods used toincreasenetwork efficiency in 802.11g networks.
F
SISO stands for Standard Interrupt Signal Order. I guess not :-0(
I feel that D and E are true !
Can you please comment
Thank you :-)
Im sorry I was only asking for some help
:-0(
For the first question about the pair of terms for the blank spaces in the statement about DHCP and the OSI model, the correct answer is D - DHCP network.
To arrive at this answer, you need to understand the role of DHCP and its position in the OSI model. DHCP stands for Dynamic Host Configuration Protocol, which is used to automatically assign IP addresses to devices on a network. The OSI model is a conceptual framework that describes how network protocols and technologies interact in a layered fashion.
DHCP operates at the network layer (Layer 3) of the OSI model, as it deals with IP addressing and network configuration. Therefore, the first blank should be filled with the term "DHCP", and the second blank should be filled with the layer that DHCP operates at, which is the network layer.
Now, for the second question regarding the true statements, you believe that the correct answers are D - Wireless network management overheads are increased when nodes operate at the fringes of the wireless range, and E - Channel bonding, frame aggregation, and block acknowledgment are methods used to increase network efficiency in 802.11g networks.
To determine the correct answers, let's evaluate each option:
A - The ISM band is the name given to a band of radio frequencies running from exactly 2.4 MHz to exactly 2.4835 MHz.
This statement is incorrect. The ISM band actually extends from 2.4 GHz to 2.4835 GHz, not MHz. Therefore, option A is false.
B - Channels 6, 8, and 10 are non-overlapping 802.11g Wi-Fi channels.
This statement is incorrect. In 802.11g Wi-Fi, channels 1, 6, and 11 are non-overlapping channels. Therefore, option B is false.
C - A wireless node with a single transmit/receive antenna is unable to use the CSMA/CD protocol.
This statement is true. CSMA/CD (Carrier Sense Multiple Access/Collision Detection) is a protocol used in wired Ethernet networks to handle collisions. Wireless networks, however, use different collision avoidance mechanisms, such as CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance). Therefore, option C is true.
D - Wireless network management overheads are increased when nodes operate at the fringes of the wireless range.
This statement is true. When nodes operate at the edges of the wireless range, the quality of the wireless signal becomes weaker, leading to increased packet loss, retransmissions, and higher management overhead. Therefore, option D is true.
E - Channel bonding, frame aggregation, and block acknowledgment are methods used to increase network efficiency in 802.11g networks.
This statement is true. Channel bonding allows the combination of multiple channels to increase bandwidth, frame aggregation combines multiple data frames into a larger frame to reduce overhead, and block acknowledgment is a method to acknowledge multiple frames at once. All of these techniques improve network efficiency in 802.11g networks. Therefore, option E is true.
F - SISO stands for Standard Interrupt Signal Order.
This statement is incorrect. SISO stands for Single Input Single Output, which is a term used in wireless communications to describe systems with one antenna for transmission and one antenna for reception. Therefore, option F is false.
Based on the evaluation, the correct answers are C and E.