Network and Security Engineer

Network Security Engineer designs, implements, and maintains the hardware and software security systems that protect an organization's computer networks and sensitive data from cyber threats

Quiz Questions

Q406: Scenario: Which command finds failed SSH logins in the authentication log on a Debian-based system?

grep "Failed password" /var/log/auth.log

cat /etc/passwd

mkdir failed

chmod 600 auth.log

ls /var/log

Q407: Scenario: A switch's MAC address table is flooded with thousands of random source addresses and it begins broadcasting unicast traffic. Which control best prevents this?

Root Guard

Port security with a MAC address limit

Raising the STP priority

NAT overload

Enabling CDP

Q408: Which name is given to OSI layer 2?

Transport layer

Presentation layer

Data Link layer

Session layer

Physical layer