* The label "1" points to a rectangular port on the laptop. This is consistent with the shape of a USB Type A port.
* The cable labeled "2" has an RJ-45 connector on one end and a USB Type A connector on the other end.
Incorrect Answers:
* C. 2 is a USB 5-pin mini USB Type B to USB Type A console cable: The connector on the cable labeled "2" is not a mini USB Type B connector. It is a standard RJ-45 connector.
* D. 3 is a USB Type A port: The label "3" points to a port on the server that is not visible in the image. Therefore, we cannot identify the type of port it is.
* E. 3 is a USB 5-pin mini USB Type B port: Same as D, we cannot identify the type of port labeled "3" due to lack of visibility in the image.

A . Correct. SSH, or Secure Shell, is indeed a protocol that provides a secure remote access connection to network devices. It encrypts the data to ensure secure transmission over insecure networks like the internet1.
C . Correct. Telnet connections are not secure and are terminated when a router reboots. This is because Telnet does not have any mechanism to maintain the connection in case of network interruptions or device reboots1.
B, D, and E are incorrect because: B. SSH uses TCP port 22 by default, not port 23, which is used by Telnet1. D . Telnet does not provide a secure connection; it transmits data in plain text, which can be intercepted easily1. E. SSH is preferred over Telnet for security reasons because it provides encrypted connections and authentication mechanisms, which Telnet does not1.
Reference :=
1: GeeksforGeeks - Difference between SSH and Telnet 2: phoenixNAP - Telnet vs. SSH: How Is SSH Different From Telnet? 3: Guru99 - Telnet vs SSH - Difference Between Them 4: Difference Between - Difference Between Telnet and SSH

A Cisco router can be configured to act as a TFTP (Trivial File Transfer Protocol) server. TFTP is a simple protocol used to transfer files without the need for authentication. On a Cisco router, the tftp-server command is used to designate the router as a TFTP server, allowing it to manage file transfers to and from connected devices. This is particularly useful for tasks such as updating the router's firmware or backing up configuration files. Neither CSU/DSU, modem, nor Cisco Content Engine are typically used as TFTP servers. Reference := The ability to configure a Cisco router as a TFTP server is documented in Cisco's support forums and knowledge base articles

Section: Cisco IOS Software Operation