Intro to ccna

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

DNS

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 destination MAC address of the technician PC. The data flow is being tracked based on the source port number that is used by each application. The data flow is being tracked based on the source IP address that is used by the PC of the technician. The data flow is being tracked based on the destination IP address that is used by a PC of a technician.

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

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 adds Ethernet control information to network protocol data applies source and destination MAC addresses to Ethernet frame responsible for the internal structure of Ethernet frame implements trailer with frame check sequence for error detection

- enables IPv4 and IPv6 to utilize the same physical medium - adds Ethernet control information to network protocol data

14. Match the characteristic to the forwarding method. (Not all options are used.) 1.always stores the entire frame 2.checks the CRC before forwarding 3.checks the frame length before forwarding 4.does not forward broadcasts 5.has low latency 6.may forward runt frames 7.begins forwarding when the destination address is received a, cut through target 1-3 b, store and forward target 4-6

1-4 \ 2-5 \ 3-6 \ 5-1 \ 6-2 \ 7-3

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

192.168.1.64/26

12. Match the description to the IPv6 addressing component. (Not all options are used.) 1.This part of adr is used by an org to identify subnets 2.This network port of the adr is assigned by the provider 3.This part of the adr is the equiv. to the host portion of an IPv4 adr a,global routing b,subnet mask c,subnet ID d,interface ID

1c 2a 3d

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? 255.255.255.128 255.255.255.240 255.255.255.248 255.255.255.224

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? 255.255.255.240 255.255.255.224 255.255.255.192 255.255.255.128

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? 255.255.255.128 255.255.255.192 255.255.255.224 255.255.255.240

255.255.255.224

32. Which scenario describes a function provided by the transport layer? A student is using a classroom VoIP phone to call home. The unique identifier burned into the phone is a transport layer address used to contact another network device on the same network. A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header. 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. A corporate worker is accessing a web server located on a corporate network. The transport layer formats the screen so the web page appears properly no matter what device is being used to view the web site

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. Allows remote access to network devices and servers. Uses encryption to provide secure remote access to network devices and servers. An application that allows real-time chatting among remote users.

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. Allows remote access to network devices and servers. Resolves domain names, such as cisco.com, into IP addresses. Uses encryption to provide secure remote access to network devices and servers

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 on the weekends when most employees are off work. Capture traffic during peak utilization times to get a good representation of the different traffic types. Only capture traffic in the areas of the network that receive most of the traffic such as the data center. Perform the capture on different network segments. Only capture WAN traffic because traffic to the web is responsible for the largest amount of traffic on a network.

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 NetBIOS (NetBT) POP3 IMAP

DNS

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

HTTP

49. What are two features of ARP? (Choose two.) 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. 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. 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 no device responds to the ARP request, then the originating node will broadcast the data packet to all devices on the network segment. If a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.

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 the frame and use its own MAC address as the destination. It will send an ARP request for the MAC address of the destination device. It will send the frame with a broadcast MAC address. It will send a request to the DNS server for the destination MAC address. It will send an ARP request for the MAC address of the default gateway

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

53. What is an advantage for small organizations of adopting IMAP instead of POP? POP only allows the client to store messages in a centralized way, while IMAP allows distributed storage. Messages are kept in the mail servers until they are manually deleted from the email client. 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. IMAP sends and retrieves email, but POP only retrieves email.

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

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

Neighbor Solicitation Router Advertisement

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

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? DNS DHCP SMTP POP3

POP3

15. Refer to the exhibit. The IP address of which device interface should be used as the default gateway setting of host H1?(3PC a switchekbol, 3 switch,2 router,1 router,ISP R1: S0/0/0 R2: S0/0/1 R1: G0/0 R2: S0/0/0

R1: G0/0

6. What service is provided by DNS? Resolves domain names, such as cisco.com, into IP addresses. A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web. Allows for data transfers between a client and a file server. Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.

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?​ All router interfaces will be automatically activated. The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages. Each router interface will generate an IPv6 link-local address.​ It statically creates a global unicast address on this router.

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

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

The host cannot communicate with hosts in other networks.

25. What service is provided by HTTPS? Uses encryption to provide secure remote access to network devices and servers. Resolves domain names, such as cisco.com, into IP addresses. Uses encryption to secure the exchange of text, graphic images, sound, and video on the web. Allows remote access to network devices and servers

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

2. Which wireless technology has low-power and data rate requirements making it popular in home automation applications? ZigBee LoRaWAN 5G Wi-Fi

ZigBee

29. What characteristic describes a DoS attack? the use of stolen credentials to access private data a network device that filters access and traffic coming into a network software that is installed on a user device and collects information about the user an attack that slows or crashes a device or network service

an attack that slows or crashes a device or network service

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

application session presentation

13. Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used?(host1,server,router1-2,switch1-2,ISP) only application and Internet layers only Internet and network access layers only application, Internet, and network access layers application, transport, Internet, and network access layers only application, transport, network, data link, and physical layers application, session, transport, network, data link, and physical layers

application, transport, Internet, and network access layers

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? financial transactions, web page, audio conference audio conference, financial transactions, web page financial transactions, audio conference, web page audio conference, web page, financial transactions

audio conference, financial transactions, web page

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? automation accounting authentication authorization

authorization

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.) crosstalk extended length of cabling RFI​ EMI signal attenuation

crosstalk extended length of cabling RFI​ EMI signal attenuation

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

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

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 applies source and destination MAC addresses to Ethernet frame integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper handles communication between upper layer networking software and Ethernet NIC hardware responsible for internal structure of Ethernet frame

enables IPv4 and IPv6 to utilize the same physical medium handles communication between upper layer networking software and Ethernet NIC hardware

55. Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) implements CSMA/CD over legacy shared half-duplex media enables IPv4 and IPv6 to utilize the same physical medium integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper implements a process to delimit fields within an Ethernet 2 frame places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame

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

55. Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) implements CSMA/CD over legacy shared half-duplex media enables IPv4 and IPv6 to utilize the same physical medium integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper implements a process to delimit fields within an Ethernet 2 frame places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame

handles communication between upper layer networking software and Ethernet NIC hardware adds Ethernet control information to network protocol data

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

improper termination low-quality cable or connectors

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

internet

What command can be used on a Windows PC to see the IP configuration of that computer? show ip interface brief ping show interfaces ipconfig

ipconfig

34. What does the term "attenuation" mean in data communication? strengthening of a signal by a networking device leakage of signals from one cable pair to another time for a signal to reach its destination loss of signal strength as distance increases

loss of signal strength as distance increases

10. What characteristic describes a virus? a network device that filters access and traffic coming into a network the use of stolen credentials to access private data an attack that slows or crashes a device or network service malicious software or code running on an end device

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 an attack that slows or crashes a device or network service the use of stolen credentials to access private data a network device that filters access and traffic coming into a network

malicious software or code running on an end device

38. What three requirements are defined by the protocols used in network communcations to allow message transmission across a network? (Choose three.) message size message encoding connector specifications media selection delivery options end-device installation

message size message encoding delivery options

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? tracert ipconfig netstat nslookup

nslookup

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? client-based master-slave point-to-point peer-to-peer (P2P)

peer-to-peer (P2P)

55. Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame implements CSMA/CD over legacy shared half-duplex media adds Ethernet control information to network protocol data applies source and destination MAC addresses to Ethernet frame

places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame adds Ethernet control information to network protocol data

What are proprietary protocols? protocols developed by private organizations to operate on any vendor hardware protocols that can be freely used by any organization or vendor protocols developed by organizations who have control over their definition and operation a collection of protocols known as the TCP/IP protocol suite

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

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.) security quality of service scalability powerline networking integrity fault tolerance

security quality of service fault tolerance

1. Which two traffic types use the Real-Time Transport Protocol (RTP)? (Choose two.) video web file transfer voice peer to peer

video