Question

1. Which of the following protocols is used by a client to send an email message? a. HTTP SMTP b. FTP d. RDP 2. What is the most common network topology today? a/Star c. Hub Ring d. Mesh 3. A client/server network is the simplest network model. a/ True O False 4. Which client server application allows an administrator to control a remote computer, but does not encrypt or secure the communication between client and server? A Telnet C. Remote Desktop B. FTP D. SSH 5. TCP functions at which layer of the OSI model? Layer 4 b. Layer 2 c. Layer 3 d. Layer 5 6. A network interface card has the MAC address 00-00-86-15-7A. From this information, specify the OUI. There is not sufficient information to specify the OUI b. The OUI is 86-15-7A. C. The oul is 86-00-00 d. The OUI is 00-00-86, 7. IP is an example of a protocol that operates in which layer of the OSI model? a Layer 7 b. Layer 6 c. Layer 5 d. Layer 2 e None of these answers is correct 8. The network address is another name for a layer 4 address. a. True False 9. Switches operate at which layer of the OSI model? 6. Physical layer b. Transport layer C. Session layer a Data Link layer 10. lp the client-server model, what is the primary protocol used for communication between a browser and Web server? A FTP 8. TCP O HTTP D. SSL

Answer 1

PLEASE FIND THE ANSWER(S) for your wrong answers and EXPLANATION BELOW.

1. OPTION C
   • ​​​​​​​EXPLANATION:-
     • We will use SMTP ( Simple Message Transfer Protocol ) to send an email message to a client.
     • HTTP is used to send the Hypertext data.
     • FTP is used to share Files.
2. OPTION B
   • ​​​​​​​​​​​​​​EXPLANATION:-
     • ​​​​​​​We use the RING topology in our network models mostly.
     • Star, Mesh, and Hub topologies have their own disadvantages.
     • Ring topology has some good features that make it possible to connect several networks/Systems.
3. OPTION TRUE
   • ​​​​​​​​​​​​​​EXPLANATION:-
     • ​​​​​​​The client-server network is the simplest network model that is currently in use.
     • We have some other models like the peer-to-peer model that is very bad at the performance.

(6) OPTION A :

Explanation:-

Given that the Network Interface Card (NIC) has the MAC Address 00-00-86-15-7A.

The OUI is the first THREE parts of the NIC card.

That is 00-00-86 is the OUI number.

Hence, option A is correct.

(12) ANSWER SEGMENTS :

Explanation:-

The Application Layer separates the data into Segments of data and send it to the transport layer.

This can also be called TCP Layer.

(14) OPTION UDP :

Explanation:-

We use the UDP protocol to send live stream video data because of the fact that UDP is a connectionless protocol.

When there is no connection, TCP will break the connection and restart from the beginning.

In UDP, we will get less quality for some time when the connection is less and when the connection is gained, we see quality data stream in live video.

(17 (a) ) OPTION Physical Layer :

Explanation:-

When the system is not able to access the network and found that the lights are not lit, we will troubleshoot the LED lights that are in Physical Layer.

Hence, Physical Layer is the correct answer.​​​​​​​

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