Exam 21-30 Flashcards
A network technician notices the site-to-site VPN and Internet connection have not come back up at a branch office after
a recent power outage. Which of the following is an out-of-band method the technician would MOST likely utilize to
check the branch office’s router status?
A. Use a modem to console into the router
B. Walk a user through troubleshooting the connection
C. Travel to the branch office
D. Hire a contractor to go on-site
A. Use a modem to console into the router
A company recently upgraded all of its printers to networked multifunction devices. Users can print to the new devices,
but they would also like the ability to scan and fax files from their computers. Which of the following should the
technician update to allow this functionality?
A. Device software
B. Printer drivers
C. Printer firmware
D. NIC drivers
C. Printer firmware
A network technician is connecting two switches together. Which of thefollowing protocols should thetechnician use to
increase speed and fault tolerance?
A. SIP
B. BGP
C. LACP
D. LLDP
C. LACP
A company has a web-based application that is used by many different departments. The company has experienced some
overload of resources on the database server. The network administrator implements a network device in between the
servers and the database. Which of the following BEST describes the purpose of this device?
A. Content filtering and network analysis
B. Load balancing and providing high availability
C. Port sniffing and protocol analysis
D. Clustering and NIC teaming
B. Load balancing and providing high availability
A technician has racked a new access switch and has run multimode fiber to a new location. After installing an extended-
range 10Gb SFP in the core switch, the technician installed a 10Gb SFP in the access switch and connected the port to
the new extension with a fiber jumper. However, the link does not display, and the technician cannot see light emitting
from the core switch. Which of the following solutions is MOST likely to resolve the problem?
A. Swap the fiber pairs in one of the SFPs
B. Replace the jumpers with single-mode fiber
C. Set the correct MTU on the new interface
D. Install an optic that matches the fiber type
B. Replace the jumpers with single-mode fiber
A Chief Information Officer (CIO) wants to move some IT services to a cloud service offering. However, the network
administrator still wants to be able to control some parts of the cloud service’s networking components. Which of the
following should be leveraged to complete this task?
A. IaaS
B. PaaS
C. SaaS
D. DaaS
B. PaaS
A technician attempts to replace a switch with a new one of similar model from the same vendor. When the technician
moves the fiber and SFP plug, the switch does not completely boot up. Considering that the config files are the same,
which of the following is the MOST likely cause of the failure?
A. Damaged fiber
B. Corrupted operating system
C. VLAN mismatch
D. Bad port
B. Corrupted operating system
Users are reporting Internet connectivity issues. The network administrator wants to determine if the issues are internal
to the company network or if there is an issue with the ISP. Which of the following tools should be used to BEST
determine where the outage is occurring?
A. traceroute
B. ping
C. nslookup
D. netstat
A. traceroute
A network engineer is configuring wireless access for guests at an organization. Access to other areas in the organization
should not be accessible to guests. Which of the following represents the MOST secure method to configure guest access
to the wireless network?
A. Guests should log into a separate wireless network using a captive portal
B. Guests should log into the current wireless network using credentials obtained upon entering the facility
C. The existing wireless network should be configured to allow guest access
D. An additional wireless network should be configured to allow guest access
A. Guests should log into a separate wireless network using a captive portal
Which of the following MUST be implemented to share metrics between routing protocols within the same router?
A. Routing loop
B. Routing table
C. Route redistribution
D. Dynamic routes
B. Routing table
