Question: The web is an effective filter of information because:
Answer Choices:
Most web pages are created by people or programs with a great interest in ensuring that the content on the page is correct and engaging
Most web pages are automatically generated by computers
Most web pages are located in exotic locations
Most web pages are used for marketing
Answer: Most web pages are created by people or programs with a great interest in ensuring that the content on the page is correct and engaging
Question: Address resolution protocol (ARP) is used to:
Answer Choices:
Discover the MAC address of a host whose IP address is known
Discover the IP address of a host whose MAC address is known
Define non-routable IP addresses
Automate the allocation of IP addresses
Answer: Discover the MAC address of a host whose IP address is known
Question: In dynamic allocation, IP addresses are assigned by DHCP:
Answer Choices:
Automatically and forever, based on a first-come-first-serve basis, from a pool of addresses
Manually and forever on a per-host basis
None of the above
Automatically and for a short period, based on a first-come-first-serve basis, from a pool of addresses
Answer: Automatically and for a short period, based on a first-come-first-serve basis, from a pool of addresses
Question: In the sliding windows mechanism for flow control, the ____ before waiting for an acknowledgment.
Answer Choices:
Receiver acknowledge data one segment at a time
Receiver processes as much data as specified by the sender in the window size field
Sender sends as much data as specified by the receiver in the window size field
Sender transmits data one segment at a time
Answer: Sender sends as much data as specified by the receiver in the window size field
Question: DHCP:
Answer Choices:
Translates IP addresses
Automates the allocation of IP addresses
Translates hostnames to IP addresses
Defines non-routable IP addresses
Answer: Automates the allocation of IP addresses
Question: A limitation of network address translation is that:
Answer Choices:
It wastes IP addresses
It adds complexity to DNS
It cannot be used with RFC 1918 addresses
It cannot be used to assign IP addresses to servers
Answer: It adds complexity to DNS
Question: The advantages of segmentation in TCP include:
Answer Choices:
Reduction in the amount of rework if a datagram is lost
Simplification of router hardware
Reduction in the likelihood of errors in each datagram
All of the above
Answer: All of the above
Question: The window size field in TCP specifies the:
Answer Choices:
Amount of data the receiver is capable of processing
Amount of data the sender is capable of processing
Sequence number of the last received datagram
Size of the window in the data center where the sender is located
Answer: Amount of data the receiver is capable of processing
Question: HTTP is an application layer protocol that enables the transfer of:
Answer Choices:
Only text files and images between computers
Only text files between computers
Pairs of files between computers
Files of any type between computers
Answer: Files of any type between computers
Question: Search advertising is:
Answer Choices:
Advertising search engines on the Internet
The placement of advertisements near web search results
Allowing users to search for coupons on the Internet
Searching for advertisements on the Internet
Answer: The placement of advertisements near web search results
Question: All of the following industries have been affected by the web except:
Answer Choices:
Book selling
Lawn mowing
Travel reservations
Stock brokerage
Answer: Lawn mowing
Question: The pull model of communication used on the web means that:
Answer Choices:
None of the above
Web sites are ranked based on how many visitors they pull in every month
Site administrators must pull content on their web sites from other sites
End users must choose to pull down content on web pages
Answer: End users must choose to pull down content on web pages
Question: ________ are decision structures that appear inside other decision structures.
Answer Choices:
Dual decision structures
Hidden decision structures
Paired decision structures
Nested decision structures
Answer: Nested decision structures
Question: All of the following are RFC 1918 address blocks except:
Answer Choices:
118.70.8/24
192.168.0.16
10.0.0.0/8
172.16.0.0/12
Answer: 118.70.8/24
Question: In the sliding windows mechanism for flow control, the ____ before waiting for an acknowledgment.
Answer Choices:
Receiver acknowledge data one segment at a time
Receiver processes as much data as specified by the sender in the window size field
Sender sends as much data as specified by the receiver in the window size field
Sender transmits data one segment at a time
Answer: Sender sends as much data as specified by the receiver in the window size field