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Which of the following protocols provides remote access utilizing port 22?
Answer: A
A. Secure Shell (SSH) A terminal emulation program that looks exactly like Telnet but encrypts the data. SSH has replaced Telnet on the Internet.
Source: Adapted from community discussion — HeatSquad77
After changes were made to a firewall, users are no longer able to access a web server. A network administrator wants to ensure that ports 80 and 443 on the web server are still accessible from the user IP space. Which of the following commands is best suited to perform this testing?
Answer: D
D. Nmap A popular open-source network scanner designed to scan a network and create a map of hosts and services by sending out packets and examining the responses. Frequently used as a vulnerability scanner
Source: Adapted from community discussion — HeatSquad77
Which of the following attacks would most likely cause duplicate IP addresses in a network?
Answer: A
A. Rogue DHCP server An unauthorized DHCP server installed in a computer network. The rogue DHCP server might be in an unauthorized device installed by a well-meaning user, or it could be malicious as in an on-path attack.
Source: Adapted from community discussion — HeatSquad77
An organization wants better network visibility. The organization's requirements include: • Multivendor/OS-monitoring capabilities • Real-time collection • Data correlation Which of the following meets these requirements?
Answer: B
B. SIEM (Security Information and Event Management). Explanation: SIEM solutions provide centralized real-time collection, data correlation, and monitoring capabilities from multiple sources across a network, including devices from different vendors and operating systems. SIEMs aggregate logs and events, analyze them for security threats, and generate alerts, offering better network visibility and actionable insights.
Source: Adapted from community discussion — HeatSquad77
An administrator is evaluating the use of authentication within SNMP. Which of the following is the most secure way of authenticating devices using only SNMP?
Answer: B
B. Use version 3 of SNMP and set up trap messages for critical events on the network. Explanation: SNMP version 3 (SNMPv3) is the most secure version of SNMP as it supports both authentication and encryption. It allows for stronger security protocols, such as user-based authentication (using MD5 or SHA) and message encryption (using DES, AES, etc.), ensuring that SNMP communication is protected from eavesdropping and unauthorized access.
Source: Adapted from community discussion — HeatSquad77
A company has observed increased user traffic to gambling websites and would like to limit this behavior on work computers. Which of the following should the company most likely implement?
Answer: B
B. Content filter An advanced networking device that implements content filtering, enabling administrators to filter traffic based on specific signatures or keywords (such as profane language)
Source: Adapted from community discussion — HeatSquad77
Following a fire in a data center, the cabling was replaced. Soon after an administrator notices network issues. Which of the following are the most likely causes of the network issues? (Choose two.)
Answer: DE
D. The RJ45 cables were replaced with unshielded cables E. The wrong transceiver type was used for the new termination Explanation: D. The RJ45 cables were replaced with unshielded cables: If the original network setup used shielded cables (e.g., STP - Shielded Twisted Pair) and the replacement cables are unshielded (e.g., UTP - Unshielded Twisted Pair), it could lead to network interference, particularly in environments with high electromagnetic interference. This could cause network performance issues. E. The wrong transceiver type was used for the new termination: If the transceivers used for fiber or copper connections are incorrect or incompatible with the new cabling or network equipment, it could result in connectivity issues, leading to network instability or failure.
Source: Adapted from community discussion — HeatSquad77
Cloud computing has the capability to meet increased and decreased demands for computing infrastructure for a short period of time. Which of the following best describes this characteristic?
Answer: B
B. Elasticity A popular way to scale an application by starting up new instances. Cloud providers make it simple to increase the number of instances as demand grows and reduce the number of instances as demand shrinks.
Source: Adapted from community discussion — HeatSquad77
Which of the following ports is used for secure email?
Answer: D
Port 25 is for SMTP, now considered insecure Port 110 is associated with POP3 which retrieves emails but is only secure with additional encryption Port 143 is associated with IMAP, without encryption Port 587 is the secure version of SMTP and uses TLS encryption
Source: Adapted from community discussion — Intel_Geek
Which of the following can also provide a security feature when implemented?
Answer: A
A. NAT (Network Address Translation). Explanation: NAT provides a security feature by hiding the internal IP addresses of devices within a network from the external world. This adds a layer of privacy and security by making internal devices less visible to potential attackers on the public internet. Additionally, NAT can help mitigate certain types of attacks and prevent direct access to internal network resources from the outside.
Source: Adapted from community discussion — HeatSquad77
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