Computer Networking sample questions

Question: Which one of the following statements changes the form’s BackColor property to Blue?

Answer Choices:
this.BackColor = Color.Blue;
Form1.BackColor = Blue;
this.Color = Blue;
Me.BackColor(Blue);

Answer: this.BackColor = Color.Blue;

Question: Each autonomous system is identified by:

Answer Choices:
Its AS number
Its MAC address
Its host name
Its IP address

Answer: Its AS number

Question: When an application is running, the control having the ________ is the one that receives the user’s keyboard input.

Answer Choices:
focus
scope
data
tab index

Answer: focus

Question: Route aggregation:

Answer Choices:
Slows down routing
Increases the size of routing tables
Combines multiple smaller IP address blocks into one larger IP address block
Deletes unused destination addresses from the routing table

Answer: Combines multiple smaller IP address blocks into one larger IP address block

Question: A router is responsible for forwarding data packets to:

Answer Choices:
A suitable neighboring router
Any neighboring router
The final destination
None of the above

Answer: A suitable neighboring router

Question: Routers connect:

Answer Choices:
Two or more networks
Two or more users
Two or more hosts
Two or more applications

Answer: Two or more networks

Question: Clicking View and then Tab Order on the Visual Studio menu bar will cause the form to be displayed in ________.

Answer Choices:
design mode
tab order selection mode
default focus mode
compile mode

Answer: tab order selection mode

Question: In exterior routing protocols, routers typically exchange routing information with:

Answer Choices:
Only the neighboring routers
Only routers within the AS
None of the above
All routers on the network

Answer: Only routers within the AS

Question: In interior routing protocols, routers typically exchange routing information with:

Answer Choices:
Only the neighboring routers
None of the above
All routers on the same network
Only routers outside the network

Answer: All routers on the same network

Question: MPLS stands for:

Answer Choices:
Multi-party line service
Multi-protocol line service
Multi-protocol label switching
Multi-party label switching

Answer: Multi-protocol label switching

Question: Controls that display text have a ________ property that allows you to change the color of the text.

Answer Choices:
TextColor
ForeColor
FontColor
Color

Answer: ForeColor

Question: In a try-catch statement, the ________ appears after the try block.

Answer Choices:
try keyword
catch clause
break clause
run statement

Answer: catch clause

Question: Routing tables maintain routes as:

Answer Choices:
A sequence of URLs
A sequence of router IDs
A sequence of AS numbers
A sequence of IP addresses

Answer: A sequence of IP addresses

Question: Routing protocols are the mechanisms used by routers to:

Answer Choices:
Maintain routing tables
Deliver data over the cables
Resolve host names to IP addresses
Speed up routing

Answer: Maintain routing tables

Question: A routing table is a table stored in a router which keeps track of:

Answer Choices:
The best paths to neighboring networks
The best paths to destination networks
All known paths to neighboring networks
All known paths to destination networks

Answer: The best paths to destination networks

Question: A ________ control is a rectangular container for other controls.

Answer Choices:
Panel
ComboBox
ListBox
GroupBox

Answer: GroupBox