Answer: b) R1 will connect to a physical Ethernet link, with the other end of the cable connected to a device at the WAN service provider point of presence.
.d) R1 will forward data link frames to R2 using an Ethernet header/trailer.
Explanation:
Here we have to understand what is MLPS. MLPS is a protocol which identifies the shortest route for the transfer of messages between routers instead of the longest route.
Here we are given a WAN which is a wide area network. Using layer 2 Ethernet service the frames are transmitted across the routers within the WAN.
Option A is incorrect as as connecting the other end of the cable to the R2 would reduce the functionality of the WAN. Option C is incorrect as HDLC header trailer has no effect.
Option B and D are correct as Ethernet header/ trailer has the same size every frame and to maintain the functionality of the WAN one end must be connected to point of presence(PoP).
Answer:
=IF(D3>50; E3; F3) and =IF(A1>60;"Pass";"Fail") are valid IF formulas.
Explanation:
P.S - The exact question is -
To find - Select the correct answer from each drop-down menu. Which IF formulas are valid? _____ and _____ are valid IF formulas.
FIRST BLANK
=IF(D3>50; E3; F3)
=IF(D3>50);( E3; F3)
=IF(10<5;23);("Incorrect")
SECOND BLANK
=IF(A1>60;"Pass";"Fail")
=IF(A1>60); ("Pass"; "Fail")
=IF(A1>60; ("Pass"; "Fail"))
Solution -
An IF structure is built following this pattern:
IF(TEST;IF TRUE;IF FALSE)
So,
The correct option is -
=IF(D3>50; E3; F3) and =IF(A1>60;"Pass";"Fail") are valid IF formulas.
<h2>Answer:</h2>
<u>The correct option is</u><u> (B) hang up and call back using the banks official phone number</u>
<h2>Explanation:</h2>
There are a lot of cases where people pretend to call from the banks where the receivers have the account. The caller tries to take the information from the receiver and pretends to be the bank official. If there is any doubt then the receiver should hang up the call and call back the official number of the bank to confirm that whether somebody has called from the bank to get the information.
Answer:
Reflection
Explanation:
Reflection is the property of light in which when a ray of light hits a smooth surface, it bounces back in the direction in which it came from. If i is the angle between the normal to the surface and the incident ray, and r is the angle between the normal and reflected ray, the law of reflection states that the angle of incidence equals the angle of reflection. That is, i = r.
So, to record the image of an object with a camera, one property of light that makes that possible is reflection because, the incidence rays form an image of the object in the camera, while the reflected rays reflect the image so that it is visible to the eye.
