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A storage network requires reduced overhead and increased efficiency for the amount of data being sent. Which of the following should an engineer most likely configure to meet these requirements?
- A. Link speed
- B. Jumbo frames
- C. QoS
- D. 802.1q tagging
A security administrator is creating a new firewall object for a device with IP address 192.168.100.1/25. However, the firewall software only uses dotted decimal notation in configuration fields. Which of the following is the correct subnet mask to use?
- A. 255.255.254.0
- B. 255.255.255.1
- C. 255.255.255.128
- D. 255.255.255.192
Which of the following disaster recovery metrics describes the average length of time a piece of equipment can be expected to operate normally?
- A. RPO
- B. RTO
- C. MTTR
- D. MTBF
A network administrator logs on to a router and sees an interface with an IP address of 10.61.52.34 255.255.255.252. Which of the following best describes how this interface IP address is being used?
- A. As a point-to-point connection
- B. To connect to the internet
- C. As a virtual address for redundancy
- D. For out-of-band management
A network technician is troubleshooting a faulty NIC and tests the theory. Which of the following should the technician do next?
- A. Develop a theory.
- B. Establish a plan of action.
- C. Implement the solution.
- D. Document the findings.
A network administrator is configuring access points for installation in a dense environment where coverage is often overlapping. Which of the following channel widths should the administrator choose to help minimize interference in the 2.4GHz spectrum?
- A. 11MHz
- B. 20MHz
- C. 40MHz
- D. 80MHz
- E. 160MHz
A network manager wants to view network traffic for devices connected to a switch. A network engineer connects an appliance to a free port on the switch and needs to configure the switch port connected to the appliance. Which of the following is the best option for the engineer to enable?
- A. Trunking
- B. Port mirroring
- C. Full duplex
- D. SNMP
Which of the following can be used to centrally manage credentials for various types of administrative privileges on configured network devices?
- A. SSO
- B. TACACS+
- C. Zero Trust
- D. Separation of duties
- E. Multifactor authentication
A network administrator is troubleshooting an application issue after a firewall change. The administrator has confirmed that the port and protocol are accessible to the user, but the application is still having issues. Which of the following tools allows the administrator to look at traffic on the application layer of the OSI model?
- A. ifconfig
- B. tcpdump
- C. nslookup
- D. traceroute
Which of the following ports should a network administrator enable for encrypted log-in to a network switch?
- A. 22
- B. 23
- C. 80
- D. 123