itm 332 chapters
A host sends a packet to another host containing seven single networks along the way. How many other hosts will there be along the route when Host A transmits?
1
A host sends a packet to another host containing six single networks along the way. How many routes are included in this transmission? Selected Answer: 1Correct Answer: 1
1
A host sends a packet to another host with six single networks along the way. How many packets are involved in this transmission?
1
If the signal strength from an omnidirectional radio source is 100 mW at 10 meters, how strong will it be at 30 meters, ignoring absorptive attenuation?
11 MW
If there are 10 routers between the source and destination hosts, how may internet processes will be involved on all devices
12
When Host A wishes to talk with Host B, the DHCP server provides the IP address of ________
HOST a
From a security perspective, the Internet's ability to give access to nearly everyone is a ________.
bad thing
Individual throughput for users of an access point _____
both A and B
An IP packet may include a(n) ________.
both a and b
Hosts on the Internet have ________ addresses.
both a and b
The transport layer on the destination host ________.
both a and b
The IETF primarily ________
creates Internet standards
Which is NOT in an IP packet?
data Link header
The final router in a route sends the packet being routed in a frame addressed to the _______
destination host
The transport process always fragments the application message.
false
A wireless host sends a packet to a server on the company's wired Ethernet LAN via an access point. How many frames will be involved in this one-way transmission?
2
If there are 10 routers between the source and destination hosts, how many transport processes will be involved on all devices?
2
A host sends a packet to another host containing six single networks along the way. How many data links are used for this transmission?
6
If a signal has a strength of 100 mW at 10 meters, how strong will it be at 40 meters?
6mw
Which of the following works in the 60 GHz unlicensed service band?
802.11ad
An FM radio station is called Moldy Oldies 101.1. The 101.1 refers to its
Channel
Which of the following is an Internet supervisory protocol?
DNS
Wi-Fi uses ________ addresses.
EUI-48
If two products both comply with 802.11 ac, their performance will always be similar.
False
Internet communication that does not involve a human is referred to with the term ________.
IOT
Source and destination IP addresses are found in the ________ header.
IP
If you triple channel bandwidth, what happens to the number of channels in a service band?
It is reduced a third.
In a point-to-point single network, there is always the same number of physical and data links.
True
Many 802.11 standards work in the 5 GHz_____.
Unlicensed service bands
If a signal has a strength of 100 mW at 10 meters, how strong will it be at 100 meters?
about 1 mW
What propagation problem is especially bad in moist air?
absorptive attenuation
Two access points that operate on the same channel will ________.
interfere
The downside of unlicensed bands is potential _______
interference from others
When a receiver transmits an ACK
it must transmit immediately
When a source host sends a packet to a destination host, there will probably be ________ along the way.
more data links
Spread spectrum transmission is used in WLANs for ________.
more reliable transmission
The 60 GHz unlicensed service band offers ________ compared to lower-frequency service bands.
more speed per channel
The most serious problem with wireless transmission in WLANs is ________
multipath interference
A packet sent from one host to another over the Internet will ALWAYS pass through ________.
none of the above
In Wi-Fi, 2.4 GHz and 5 GHz refer to ________.
none of the above
The set of frequencies used for police communication in a city are ________.
none of the above
Router forwarding is called ________.
routing
In CSMA/CD+ACK, when a wireless NIC wishes to transmit, it listens for traffic. If there is traffic, it waits. When the traffic stops, it may transmit immediately.
sometimes true
Signals in a transmission usually _
spread over a range of frequencies
Access points in the same ESS communicate via ________.
the distribution system
If an 802.11n client tries to use an 802.11ac access point,
they will communicate using 802.11n
In a single switched network with seven switches between a source and destination host, the source host addresses the frame ________
to the destination host
Mimi__
transmits multiple signals in the same channel
The network stack implements the ________ layer process.
transport
When does it make sense to use RTS/CTS?
when not all of the devices can hear each other
