Part 8 – Computer Networking / TCP-IP, Routing & Internet Protocols (15-25 bracket)
Question: The mechanism used for flow control in TCP is:
Answer Choices:
CSMA/CD
Stop and wait
Three-way handshake
Answer: Three-way handshake
Question: The most common Data Link layer technology used in corporate networks is:
Answer Choices:
Ethernet
Internet
TCP
IP
Answer: Ethernet
Question: The most popular interior routing protocol is:
Answer Choices:
Border gateway protocol (BGP)
Open shortest path first protocol (OSPF)
Dynamic host control protocol (DHCP)
Address resolution protocol (ARP)
Answer: Open shortest path first protocol (OSPF)
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: A regular Ethernet address (MAC address) has ____ bits.
Answer Choices:
32
16
48
96
Answer: 48
Question: When the subnet mask 255.255.254.0 is applied to the IP address 192.168.151.45, the masked address is
Answer Choices:
255.255.254.0
255.255.255.0
Answer: 192.168.150.0
Question: Signals in copper wire are transmitted as:
Answer Choices:
Electrical signals
Sound signals
Smoke signals
Light signals
Answer: Electrical signals
Question: To get the IP address of www.gm.com, your laptop at home contacts:
Answer Choices:
The root name server
Your home name server
GM’s name server
A random name server
Answer: Your home name server
Question: An organization with a class B network address has 100 subnets. Each subnet in this organization can have at most ______ hosts.
Answer Choices:
256
64
512
128
Answer: 256
Question: In TDM:
Answer Choices:
Signals from each channel are sent at a specified time.
Signals from each channel are sent at a specified phase/delay.
Signals from each channel are sent at a specified frequency.
Signals from each channel are sent at a specified amplitude.
Answer: Signals from each channel are sent at a specified time.
Question: In a typical home network, the router also acts as the:
Answer Choices:
All of the above
DNS server
DHCP server
NAT device
Answer: All of the above
Question: In MPLS, packets are delivered based on:
Answer Choices:
The location of switches
IP destination addresses
Port addresses
Pre-defined labels
Answer: Pre-defined labels
Question: To reduce broadcasts in a LAN, the most suitable device is a:
Answer Choices:
Cat5 cable
Switch
Hub
Router
Answer: Switch
Question: Non-routable addresses are also called:
Answer Choices:
Hobby addresses
RFC 1918 addresses
Experimental addresses
Useless addresses
Answer: RFC 1918 addresses
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 common packet format that can be transferred by any networking technology and that serves all applications is defined at the ______ layer.
Answer Choices:
Network layer
Transport layer
Data Link layer
Application layer
Answer: Transport layer
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: The IP address 192.168.50.75 is written in binary notation as:
Answer Choices:
11000000 10101000 00110010 01001011
11000001 10101000 00110011 01001011
11000000 10101000 00110010 01001001
11000000 10101001 00110010 01001011
Answer: 11000000 10101000 00110010 01001011
Question: Routing is the process of:
Answer Choices:
Directing end users to their user stations in the office
Directing information paths from the source network to the destination network
Directing network traffic around defective routers
None of the above
Answer: Directing information paths from the source network to the destination network
Question: The contribution of the OSI model was that:
Answer Choices:
It helped specify the concept of layers in data communication.
It helped develop the technology used for routing.
It helped develop the technologies used for reliable data delivery.
It helped develop the technologies used for signaling.
Answer: It helped specify the concept of layers in data communication.
Question: The time-to-live for a DNS record specifies the:
Answer Choices:
The maximum number of hops allowed for a packet to reach the host
The time at which the host is expected to be taken down for maintenance
The mean number of hops allowed for a packet to reach the host
The duration for which the name to IP address mapping is expected to be valid
Answer: The duration for which the name to IP address mapping is expected to be valid
Question: The ‘com’ name servers authoritatively know(s) the name to IP address mapping of all domain names ending in “.com” such as www.yahoo.com, news.google.com:
Answer Choices:
No single name server
The ‘edu’ name server
The root name servers
The ‘com’ name servers
Answer: The ‘com’ name servers
Question: In the name “10BaseT,” the phrase “base” refers to:
Answer Choices:
Baseband transmission
Stationary media
Frequency of sound
Alkaline media
Answer: Baseband transmission
Question: An organization with a class B network address has 50 subnets. The most suitable subnet mask for the organization is
Answer Choices:
255.255.254.0
255.255.248.0
255.255.252.0
255.255.255.0
Answer: 255.255.248.0