Which of the following OSI layers contains the LLC function?
A. Network
B. Data link
C. Session
D. Transport
Which of the following BEST describes the RADIUS authentication service protocol?
A. A protocol that sends passwords to the authentication server
B. A protocol that sends encrypted tickets from the authentication server
C. A protocol that sends X.500 service requests to the authentication server
D. A protocol that sends configuration information from the authentication server
A network engineer has connected the storefront with the maintenance shed on the other side of a golf course using 802.11 wireless bridges and omnidirectional antennas. However, the signal strength is too weak. Which of the following is the MOST efficient and cost-effective solution to solve the issue?
A. Replace the omnidirectional antennas with unidirectional antennas.
B. Put protective enclosures around the omnidirectional antennas to prevent damage from golf balls.
C. Replace the 802.11 wireless standard and use GSM instead.
D. Replace the wireless bridges with wireless routers.
Joe, a technician, was able to copy data at a site with no network equipment between two new laptops, featuring gigabit Ethernet ports, by using a regular straight-through patch cable. Joe then unsuccessfully tried to accomplish the same thing at a different site from his laptop with a gigabit Ethernet port to an older customer unit, which had a 10/100 network port. Which of the following is the cause of this?
A. The customer's laptop does not support auto-MDIX.
B. Joe's laptop does not support auto-MDIX.
C. Straight-through patch cables are prone to crosstalk.
D. The customer's laptop NIC does not support full duplex.
A security administrator wants to implement the ability to prevent an unauthorized user from tailgating into the office building. Which of the following should be implemented?
A. Badge reader
B. Bluetooth reader
C. Cipher lock
D. Mantrap
A manufacturing company has signed an agreement with another company to collaborate on an upcoming project. Both companies require secure and persistent access to resources on each others' networks. Which of the following remote access technologies should the companies implement to satisfy their requirements?
A. Out-of-band management
B. Site-to-site VPN
C. DMZ networks
D. SFTP site
A company deploys many workers in the field who remotely access files from a server at headquarters. Leadership is concerned about the risks posed when field workers update these files from unsecured networks. Which of the following policy changes can the company make to MOST improve the confidentiality of connections when connecting remotely? (Choose two.)
A. Implement SSL VPN connections from the remote devices to headquarters.
B. Change file access protocols from SFTP to FTP on the remote devices.
C. Utilize HTTPS to access the company intranet from remote devices.
D. Configure WPA2 on the wireless networks at headquarters.
E. Configure IMAP over port 143 for email access on remote devices.
A network administrator has signed up for service with a new ISP. The administrator was given the IP address of 172.17.10.254/30 to use on the external interface of the Internet-facing router. However, the network administrator cannot reach the Internet using that address. Which of the following is the MOST likely explanation?
A. The address provided by the ISP has a mask that is too small to be used and needs a larger mask.
B. The address provided by the ISP is a private IP address space and is not routable on the Internet.
C. The address provided by the ISP is the wrong one; they should be using 172.17.10.252/30.
D. The address provided by the ISP is part of the reserved loopback address space and cannot be used.
A technician is installing six PCs and six VoIP telephones on a small office LAN. The VoIP telephones require QoS to be configured for proper operation. The customer router does not have QoS capability. Which of the following network devices should the technician purchase and install at this office?
A. Managed PoE switch
B. Load balancer
C. Layer 3 switch
D. Unmanaged PoE switch
Which of the following routing conventions is known as a link-state protocol?
A. RIP
B. BGP
C. EIGRP
D. OSPF
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