1. A network technician notices that switches of the same model have different commands and security features while administering them. Which of the following hardening techniques should the technician perform on a regular schedule to ensure all switches have the same features and security functionality?

A) A. Change the default credentials.
B) B. Verify the firmware file hash.
C) C. Disable unused switchports.
D) D. Apply patches and updates.



2. A request is made to open an additional port on a firewall. The request is approved, and the port is opened. Which of the following BEST describes this process?

A) A. Standard operating procedure
B) B. Process management
C) C. Project management
D) D. Change management



3. The process of searching for open or weakly secured wireless networks in a geographic area is known as:

A) A. phishing.
B) B. social engineering.
C) C. war driving.
D) D. an evil twin.



4. Which of the following types of attacks is characterized by encrypting data and locking out a user from access to certain data within a workstation?

A) A. Ransomware
B) B. Phishing
C) C. DDoS
D) D. Social engineering
E) E. Spoofing


5. A network engineer at a large company is restricting Internet browsing on the corporate WAN to only business-related external websites. Which of the following is the BEST solution to achieve this goal while avoiding the need to configure this restriction on each PC?

A) A. Web application firewall
B) B. Content filter
C) C. IPS
D) D. VPN concentrator