CompTIA N10-008 Practice Test - Questions Answers, Page 21

The error message in the image indicates that the network engineer is trying to connect to theswitch using telnet, which is a protocol that allows remote access to a device over a network1.However, telnet is an insecure protocol that sends data in plain text, which can be easilyintercepted and compromised by attackers1.

Therefore, most modern switches do not support telnet by default, and require a more secureprotocol such as SSH (Secure Shell), which encrypts the data and provides authentication andintegrity2.To connect to the switch using SSH, the network engineer needs to use a different command,such as ''ssh 10.1.200.1'' instead of ''telnet 10.1.200.1''.Alternatively, the network engineer can use a console cable to connect directly to the switchand configure it locally3.The other options are less likely to cause the error message, as they would result in differentmessages or symptoms, such as ''Access denied'', ''Timeout'', or ''No response''.Reference:1: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 14: Network Security, p. 5742: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 14: Network Security, p. 5753: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 2: Network Devices, p. 64

The recovery time objective (RTO) is the maximum tolerable length of time that a computer, system, network or application can be down after a failure or disaster occurs. This does nothing to help with CPU utilization. Load balancing does this.

To determine if a client's network cable issues may be causing intermittent connectivity, the help desk technician can run the show interface command on the switch. This command allows the technician to view the status and statistics of the various interfaces on the switch, including the physical link status and the number of transmitted and received packets. If the interface is experiencing a large number of errors or dropped packets, this could indicate a problem with the network cable or with the connection between the client's device and the switch. "Cisco routers and switches have a show interfaces IOS command that provides interface statistics/status information, including link state (up/down), speed/duplex, send/receive traffic, cyclic redundancy checks (CRCs), and protocol packet and byte counts."

a network tap is a way of connecting an IDS out of band, which means it does not interfere with the normal network traffic. A network tap allows you to view a copy of the network traffic transmitted over the media being tapped.

The OSI model layer that ensures the initiation, coordination, and termination of a video call is the session layer. The session layer is responsible for establishing, maintaining, and terminating communication sessions between two devices on a network.

A false camera is a dummy device that looks like a real camera but does not actually record ortransmit any video. It is used to deter potential intruders or attackers from entering ordamaging a building by creating the illusion of surveillance. Therefore, it is a preventivemeasure that aims to reduce the likelihood or impact of a security breach. It is not a detection,recovery, or identification tool, as it does not alert, restore, or recognize any security incidents.[CompTIA Network+ N10-008 Certification Study Guide], Chapter 6: Network Security, Section6.1: Physical Security, pp. 317-318

Professor Messer's CompTIA N10-008 Network+ Course Notes], Section 6.1: Physical Security,p. 79[Professor Messer's CompTIA N10-008 Network+ Training Course], Video 6.1: Physical Security,5:25 minutes