Final Exam Answers Full - ENSA (71-140)

71. What are two benefits of extending access layer connectivity to users through a wireless medium? (Choose two.)

• reduced costs

• decreased number of critical points of failure

• increased flexibility

• • increased bandwidth availability

• increased network management options

72. What are two purposes of launching a reconnaissance attack on a network? (Choose two.)

• to scan for accessibility

• • to retrieve and modify data

• to gather information about the network and devices

• to prevent other users from accessing the system

• to escalate access privileges

73. A group of users on the same network are all complaining about their computers running slowly. After investigating, the technician determines that these computers are part of a zombie network. Which type of malware is used to control these computers?

• botnet

• spyware

• virus

• rootkit

74. An ACL is applied inbound on a router interface. The ACL consists of a single entry:

access-list 101 permit tcp 10.1.1.0 0.0.0.255 host 192.31.7.45 eq dns .

If a packet with a source address of 10.1.1.201, a destination address of 192.31.7.45, and a protocol of 23 is received on the interface, is the packet permitted or denied?

• permitted

• denied

75. Refer to the exhibit. From which location did this router load the IOS?

• flash memory

• NVRAM?

• RAM

• ROM

• a TFTP server?

76. Refer to the exhibit. Which data format is used to represent the data for network automation applications?

• XML

• YAML

• HTML

• JSON

77. What QoS step must occur before packets can be marked?

• classifying

• shaping

• queuing

• policing

78. What is the main function of a hypervisor?

• It is used to create and manage multiple VM instances on a host machine.

• • It is a device that filters and checks security credentials.

• • It is a device that synchronizes a group of sensors.

• • It is software used to coordinate and prepare data for analysis.

79. A company needs to interconnect several branch offices across a metropolitan area. The network engineer is seeking a solution that provides high-speed converged traffic, including voice, video, and data on the same network infrastructure. The company also wants easy integration to their existing LAN infrastructure in their office locations. Which technology should be recommended?

• • Frame Relay

• Ethernet WAN

• VSAT

• ISDN

80. Refer to the exhibit. As traffic is forwarded out an egress interface with QoS treatment, which congestion avoidance technique is used?

• • traffic shaping

• • weighted random early detection

• • classification and marking

• traffic policing