CCNA Final Exam 1-50

25. What service is provided by HTTPS?

Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.

46. Which three layers of the OSI model map to the application layer of the TCP/IP model? (Choose three.)

application,session,presentation,remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0

41. What are two common causes of signal degradation when using UTP cabling? (Choose two.)

improper termination,low-quality cable or connectors

42. Which subnet would include the address 192.168.1.96 as a usable host address?

192.168.1.64/26

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?

255.255.255.128

27. A network administrator is adding a new LAN to a branch office. The new LAN must support 61 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.192

23. A network administrator is adding a new LAN to a branch office. The new LAN must support 25 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.224

32. Which scenario describes a function provided by the transport layer?

A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.

31. What service is provided by SMTP?

Allows clients to send email to a mail server and the servers to send email to other servers.

16. What service is provided by Internet Messenger?

An application that allows real-time chatting among remote users.

44. Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? (Choose two.)

Capture traffic during peak utilization times to get a good representation of the different traffic types.,Perform the capture on different network segments.

22. A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting?

DNS

4. Which type of server relies on record types such as A, NS, AAAA, and MX in order to provide services?

DNS

49. What are two features of ARP? (Choose two.)

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. If a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.

20. A host is trying to send a packet to a device on a remote LAN segment, but there are currently no mappings in its ARP cache. How will the device obtain a destination MAC address?

It will send an ARP request for the MAC address of the default gateway.

51. What are two ICMPv6 messages that are not present in ICMP for IPv4? (Choose two.)

Neighbor Solicitation, Router Advertisement

36. Which two protocols operate at the top layer of the TCP/IP protocol suite? (Choose two.)

POP,DNS

7. A client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting?

POP3

6. What service is provided by DNS?

Resolves domain names, such as cisco.com, into IP addresses.

45. What is the consequence of configuring a router with the ipv6 unicast-routing global configuration command?​

The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages.

26. A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows?

The data flow is being tracked based on the source port number that is used by each application.

48. What will happen if the default gateway address is incorrectly configured on a host?

The host cannot communicate with hosts in other networks.

37. A company has a file server that shares a folder named Public. The network security policy specifies that the Public folder is assigned Read-Only rights to anyone who can log into the server while the Edit rights are assigned only to the network admin group. Which component is addressed in the AAA network service framework?

authorization

39. What are two characteristics of IP? (Choose two.)

does not require a dedicated end-to-end connection,operates independently of the network media

3. Which layer of the TCP/IP model provides a route to forward messages through an internetwork?

internet

8. What command can be used on a Windows PC to see the IP configuration of that computer

ipconfig

34. What does the term "attenuation" mean in data communication?

loss of signal strength as distance increases

10. What characteristic describes a virus?

malicious software or code running on an end device

24. What characteristic describes a Trojan horse?

malicious software or code running on an end device

38. What three requirements are defined by the protocols used in network communications to allow message transmission across a network? (Choose three.)

message size,message encoding,delivery options

9. A wired laser printer is attached to a home computer. That printer has been shared so that other computers on the home network can also use the printer. What networking model is in use?

peer-to-peer (P2P)

5. What are proprietary protocols?

protocols developed by organizations who have control over their definition and operation

What three network characteristics are described in this scenario? (Choose three.)

security,quality of service,fault tolerance

1.Which two traffic types use the Real-Time Transport Protocol (RTP)? (Choose two.)

video,voice

19. A network administrator notices that some newly installed Ethernet cabling is carrying corrupt and distorted data signals. The new cabling was installed in the ceiling close to fluorescent lights and electrical equipment. Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.)

RFI​,EMI

2. Which wireless technology has low-power and data rate requirements making it popular in home automation applications?

ZigBee

11. Three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?

audio conference, financial transactions, web page