CCNA Final Exam 51-100

57. What happens when the transport input ssh command is entered on the switch vty lines?

Communication between the switch and remote users is encrypted.

82. What method is used to manage contention-based access on a wireless network?

CSMA/CA

91. What would be the interface ID of an IPv6 enabled interface with a MAC address of 1C-6F-65-C2-BD-F8 when the interface ID is generated by using the EUI-64 process?

1E6F:65FF:FEC2:BDF8

The network administrator has deemed that 192.168.10.0/24 is to be the network used at this site. Which single subnet mask would make the most efficient use of the available addresses to use for the four subnetworks?

255.255.255.224

70. A network administrator is adding a new LAN to a branch office. The new LAN must support 4 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.248

60. What service is provided by HTTP?

A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.

88. What service is provided by FTP?

Allows for data transfers between a client and a file server.

76. An administrator defined a local user account with a secret password on router R1 for use with SSH. Which three additional steps are required to configure R1 to accept only encrypted SSH connections? (Choose three.)

Configure the IP domain name on the router., Generate the SSH keys. ,Enable inbound vty SSH sessions.

61. A client packet is received by a server. The packet has a destination port number of 67. What service is the client requesting?

DHCP

89. A user is attempting to access http://www.cisco.com/ without success. Which two configuration values must be set on the host to allow this access? (Choose two.)

DNS server, default gateway

81. A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured?

Exit privileged EXEC mode and press Enter .

87. Which range of link-local addresses can be assigned to an IPv6-enabled interface?

FE80::/10

52. A client packet is received by a server. The packet has a destination port number of 80. What service is the client requesting?

HTTP

80. A network administrator is designing the layout of a new wireless network. Which three areas of concern should be accounted for when building a wireless network? (Choose three.)

Interference, Security, coverage area

74. What mechanism is used by a router to prevent a received IPv4 packet from traveling endlessly on a network?

It decrements the value of the TTL field by 1 and if the result is 0, it discards the packet and sends a Time Exceeded message to the source host.

103. How does the service password-encryption command enhance password security on Cisco routers and switches?

It encrypts passwords that are stored in router or switch configuration files.

93. What service is provided by BOOTP?

Legacy application that enables a diskless workstation to discover its own IP address and find a BOOTP server on the network.

53. What is an advantage for small organizations of adopting IMAP instead of POP?

Messages are kept in the mail servers until they are manually deleted from the email client.

90. Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)

NAT introduces problems for some applications that require end-to-end connectivity., NAT provides a solution to slow down the IPv4 address depletion.

63. A group of Windows PCs in a new subnet has been added to an Ethernet network. When testing the connectivity, a technician finds that these PCs can access local network resources but not the Internet resources. To troubleshoot the problem, the technician wantsto initially confirm the IP address and DNS configurations on the PCs, and also verify connectivity to the local router. Which three Windows CLI commands and utilities will provide the necessary information? (Choose three.)

Ping, Ipconfig, nslookup

71. What service is provided by POP3?

Retrieves email from the server by downloading the email to the local mail application of the client.

66. A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch to manage it. Which access method should be chosen?

SSH

75. A client packet is received by a server. The packet has a destination port number of 69. What service is the client requesting?

TFTP

62. What are two problems that can be caused by a large number of ARP request and reply messages? (Choose two.)

The ARP request is sent as a broadcast, and will flood the entire subnet., All ARP request messages must be processed by all nodes on the local network.

104. Which two statements are correct in a comparison of IPv4 and IPv6 packet headers? (Choose two.)

The Source Address field name from IPv4 is kept in IPv6,The Time-to-Live field from IPv4 has been replaced by the Hop Limit field in IPv6.

56. The global configuration command ip default-gateway 172.16.100.1 is applied to a switch. What is the effect of this command?

The switch can be remotely managed from a host on another network.

68. Which type of security threat would be responsible if a spreadsheet add-on disables the local software firewall?

Trojan horse

67. What are the two most effective ways to defend against malware? (Choose two.)

Update the operating system and other application software., Install and update antivirus software.

97. What are two primary responsibilities of the Ethernet MAC sublayer? (Choose two.)

accessing the media, data encapsulation

78. An IPv6 enabled device sends a data packet with the destination address of FF02::2. What is the target of this packet?​

all IPv6 configured routers on the local link​

65. What characteristic describes antispyware?

applications that protect end devices from becoming infected with malicious software

73. What characteristic describes antivirus software?

applications that protect end devices from becoming infected with malicious software

55. Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.)

enables IPv4 and IPv6 to utilize the same physical medium, places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame

69. Which frame field is created by a source node and used by a destination node to ensure that a transmitted data signal has not been altered by interference, distortion, or signal loss?

frame check sequence field

54. A technician can ping the IP address of the web server of a remote company but cannot successfully ping the URL address of the same web server. Which software utility can the technician use to diagnose the problem?

nslookup

83. What is a function of the data link layer?

provides for the exchange of frames over a common local media

59. A disgruntled employee is using some free wireless networking tools to determine information about the enterprise wireless networks. This person is planning on using this information to hack the wireless network. What type of attack is this?

reconnaissance

85. What characteristic describes spyware?

software that is installed on a user device and collects information about the user

94. What characteristic describes adware?

software that is installed on a user device and collects information about the user

95. When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the switch revert when the error threshold is reached?

store-and-forward

86. Which switching method drops frames that fail the FCS check?

store-and-forward switching

79. What are the three parts of an IPv6 global unicast address? (Choose three.)

subnet ID, global routing prefix, interface ID

64. During the process of forwarding traffic, what will the router do immediately after matching the destination IP address to a network on a directly connected routing table entry?

switch the packet to the directly connected interface

102. Users are reporting longer delays in authentication and in accessing network resources during certain time periods of the week. What kind of information should network engineers check to find out if this situation is part of a normal network behavior?

the network performance baseline

84. What is the purpose of the TCP sliding window?

to request that a source decrease the rate at which it transmits data

72. What two security solutions are most likely to be used only in a corporate environment? (Choose two.)

virtual private networks,intrusion prevention systems