LEVEL 3 FINALS NETWORKING

42. Which subnet would include the address 192.168.1.96 as a usable host address? a. 192.168.1.64/26 b. 192.168.1.32/27 c. 192.168.1.32/28 d. 192.168.1.64/29

a

50. A network administrator is adding a new LAN to a branch office. The new LAN must support 90 connected devices. What is the smallest network mask that the network administrator can use for the new network? a. 255.255.255.128 b. 255.255.255.240 c. 255.255.255.248 d. 255.255.255.224

a

39. What are two characteristics of IP? (Choose two.) a. does not require a dedicated end-to-end connection b. operates independently of the network media c. retransmits packets if errors occur d. re-assembles out of order packets into the correct order at the receiver end e. guarantees delivery of packets

a and b

51. What are two ICMPv6 messages that are not present in ICMP for IPv4? (Choose two.) a. Neighbor Solicitation b. Destination Unreachable c. Host Confirmation d. Time Exceeded e. Router Advertisement f. Route Redirection

a and e

46. Which three layers of the OSI model map to the application layer of the TCP/IP model? (Choose three.) a. application b. network c. data link d. session e. presentation f. transport

a, b, e

40. An employee of a large corporation remotely logs into the company using the appropriate username and password. The employee is attending an important video conference with a customer concerning a large sale. It is important for the video quality to be excellent during the meeting. The employee is unaware that after a successful login, the connection to the company ISP failed. The secondary connection, however, activated within seconds. The disruption was not noticed by the employee or other employees.What three network characteristics are described in this scenario? (Choose three.) a. security b. quality of service c. scalability d. powerline networking e. integrity f. fault tolerance

a, b, f

45. What is the consequence of configuring a router with the ipv6 unicast-routing global configuration command?​ a. All router interfaces will be automatically activated. b. The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages. c. Each router interface will generate an IPv6 link-local address.​ d. It statically creates a global unicast address on this router.​

b

48. What will happen if the default gateway address is incorrectly configured on a host? a. The host cannot communicate with other hosts in the local network. b. The host cannot communicate with hosts in other networks. c. A ping from the host to 127.0.0.1 would not be successful. d. The host will have to use ARP to determine the correct address of the default gateway. e. The switch will not forward packets initiated by the host.

b

53. What is an advantage for small organizations of adopting IMAP instead of POP? a. POP only allows the client to store messages in a centralized way, while IMAP allows distributed storage. b. Messages are kept in the mail servers until they are manually deleted from the email client. c. When the user connects to a POP server, copies of the messages are kept in the mail server for a short time, but IMAP keeps them for a long time. d. IMAP sends and retrieves email, but POP only retrieves email.

b

56. The global configuration command ip default-gateway 172.16.100.1 is applied to a switch. What is the effect of this command? a. The switch can communicate with other hosts on the 172.16.100.0 network. b. The switch can be remotely managed from a host on another network. c. The switch is limited to sending and receiving frames to and from the gateway 172.16.100.1. d. The switch will have a management interface with the address 172.16.100.1.

b

57. What happens when the transport input ssh command is entered on the switch vty lines? a. The SSH client on the switch is enabled. b. The switch requires a username/password combination for remote access. c. Communication between the switch and remote users is encrypted. d. The switch requires remote connections via a proprietary client software.

b

43. Refer to the exhibit. On the basis of the output, which two statements about network connectivity are correct? (Choose two.) [AN IMAGE WILL POP] a. his host does not have a default gateway configured. b. There are 4 hops between this device and the device at 192.168.100.1. c. There is connectivity between this device and the device at 192.168.100.1. d. The connectivity between these two hosts allows for videoconferencing calls. e. The average transmission time between the two hosts is 2 milliseconds.

b and c

41. What are two common causes of signal degradation when using UTP cabling? (Choose two.) a. improper termination b. low-quality shielding in cable c. installing cables in conduit d. low-quality cable or connectors e. loss of light over long distances

b and d

44. Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? (Choose two.) a. Capture traffic on the weekends when most employees are off work. b. Capture traffic during peak utilization times to get a good representation of the different traffic types. c. Only capture traffic in the areas of the network that receive most of the traffic such as the data center. d. Perform the capture on different network segments. e. Only capture WAN traffic because traffic to the web is responsible for the largest amount of traffic on a network.

b and d

49. What are two features of ARP? (Choose two.) a. When a host is encapsulating a packet into a frame, it refers to the MAC address table to determine the mapping of IP addresses to MAC addresses. b. An ARP request is sent to all devices on the Ethernet LAN and contains the IP address of the destination host and its multicast MAC address. c. If a host is ready to send a packet to a local destination device and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast. d. If no device responds to the ARP request, then the originating node will broadcast the data packet to all devices on the network segment. e. If a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.

c and e

58. - poor handling of key electrical components (electrostatic discharge), lack of critical spare parts, poor cabling, and poor labeling - temperature extremes (too hot or too cold) or humidity extremes (too wet or too dry) - -unauthorized access resulting in loss of data - physical damage to servers, routers, switches, cabling plant, and workstations a. hardware threats b. environmental threats c. electrical threats d. maintenance threats

c, b, d, a

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? a. DoS b. access c. reconnaissance d. Trojan horse

c.

47. Refer to the exhibit. If PC1 is sending a packet to PC2 and routing has been configured between the two routers, what will R1 do with the Ethernet frame header attached by PC1? a. nothing, because the router has a route to the destination network b. open the header and use it to determine whether the data is to be sent out S0/0/0 c. open the header and replace the destination MAC address with a new one d. remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0

d

52. A client packet is received by a server. The packet has a destination port number of 80. What service is the client requesting? a. DHCP b. SMTP c. DNS d. HTTP

d

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? a. tracert b. ipconfig c. netstat d. nslookup

d