Download CCNA 1 v7.0 Final Exam Study Questions and Answers: Networking Fundamentals and more Exams Computer Science in PDF only on Docsity!
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Two ICMPv6 message types that must be permitted through IPv access control lists to allow resolution of Layer 3 addresses to Layer 2 MAC addresses are - - - correct answer ✅neighbor solicitations neighbor advertisements Which range of link-local addresses can be assigned to an IPv6- enabled interface? - - - correct answer ✅FE80::/ 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? - - - correct answer ✅1E6F:65FF:FEC2:BDF An organization is assigned an IPv6 address block of 2001:db8:0:ca00::/56. How many subnets can be created without using bits in the interface ID space? - - - correct answer ✅ 256 When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the
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switch revert when the error threshold is reached? - - - correct answer ✅store-and-forward Which two statements are correct about MAC and IP addresses during data transmission if NAT is not involved? - - - correct answer ✅-Destination IP addresses in a packet header remain constant along the entire path to a target host. -Destination and source MAC addresses have local significance and change every time a frame goes from one LAN to another. What is one main characteristic of the data link layer? - - - correct answer ✅It shields the upper layer protocol from being aware of the physical medium to be used in the communication. What are three characteristics of the CSMA/CD process? - - - correct answer ✅1. A device listens and waits until the media is not busy before transmitting.
- After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired.
- All of the devices on a segment see data that passes on the network medium.
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- If a default static route is configured in the router, an entry will be included in the routing table with source code S. How does the service password-encryption command enhance password security on Cisco routers and switches? - - - correct answer ✅It encrypts passwords that are stored in router or switch configuration files. Why would a Layer 2 switch need an IP address? - - - correct answer ✅to enable the switch to be managed remotely What characteristic describes identity theft? - - - correct answer ✅the use of stolen credentials to access private data A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination? - -
correct answer ✅the MAC address of the default gateway Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in
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this situation? - - - correct answer ✅- The source port field identifies the running application or service that will handle data returning to the PC.
- UDP segments are encapsulated within IP packets for transport across the network.
- The UDP destination port number identifies the application or service on the server which will handle the data. A company uses the address block of 128.107.0.0/16 for its network. What subnet mask would provide the maximum number of equal size subnets while providing enough host addresses for each subnet in the exhibit? - - - correct answer ✅255.255.255. A network administrator wants to have the same subnet mask for three subnetworks at a small site. The site has the following networks and numbers of devices: Subnetwork A: IP phones - 10 addresses Subnetwork B: PCs - 8 addresses Subnetwork C: Printers - 2 addresses - - - correct answer ✅255.255.255.
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What technique is used with UTP cable to help protect against signal interference from crosstalk? - - - correct answer ✅twisting the wires together into pairs 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? - - - correct answer ✅interference security coverage area Users report that the network access is slow. After questioning the employees, the network administrator learned that one employee downloaded a third-party scanning program for the printer. What type of malware might be introduced that causes slow performance of the network? - - - correct answer ✅worm Which scenario describes a function provided by the transport layer? - - - correct answer ✅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.
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What does the term "attenuation" mean in data communication? - -
correct answer ✅loss of signal strength as distance increases Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem? - - - correct answer ✅The administrator must first enter privileged EXEC mode before issuing the command. Which two protocols operate at the top layer of the TCP/IP protocol suite? - - - correct answer ✅POP DNS 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? - -
correct answer ✅authorization
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quality of service fault tolerance What are two common causes of signal degradation when using UTP cabling? - - - correct answer ✅improper termination low-quality cable or connectors Which subnet would include the address 192.168.1.96 as a usable host address? 192.168.1.64/ 192.168.1.32/ 192.168.1.32/ 192.168.1.64/29 - - - correct answer ✅192.168.1.64/ These two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? - - - correct answer ✅1. Capture traffic during peak utilization times to get a good representation of the different traffic types.
- Perform the capture on different network segments.
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What is the consequence of configuring a router with the ipv unicast-routing global configuration command? - - - correct answer ✅The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages. Which three layers of the OSI model map to the application layer of the TCP/IP model? - - - correct answer ✅application session presentation What will happen if the default gateway address is incorrectly configured on a host? - - - correct answer ✅The host cannot communicate with hosts in other networks. What are two features of ARP? - - - correct answer ✅1. 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.
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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? - - - correct answer ✅nslookup Two functions performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? - - - correct answer ✅1. 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 The global configuration command ip default-gateway 172.16.100. is applied to a switch. What is the effect of this command? - - - correct answer ✅The switch can be remotely managed from a host on another network. What happens when the transport input ssh command is entered on the switch vty lines? - - - correct answer ✅Communication between the switch and remote users is encrypted.
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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? - - - correct answer ✅reconnaissance What service is provided by HTTP? - - - correct answer ✅A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web. A client packet is received by a server. The packet has a destination port number of 67. What service is the client requesting? - - - correct answer ✅DHCP What are two problems that can be caused by a large number of ARP request and reply messages? - - - correct answer ✅1. The ARP request is sent as a broadcast, and will flood the entire subnet.
- A large number of ARP request and reply messages may slow down the switching process, leading the switch to make many changes in its MAC table.
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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? - - - correct answer ✅SSH What are the two most effective ways to defend against malware? -
correct answer ✅1. Update the operating system and other application software.
- Install and update antivirus software. Which type of security threat would be responsible if a spreadsheet add-on disables the local software firewall? - - - correct answer ✅Trojan horse 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? - - - correct answer ✅frame check sequence field
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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? - - - correct answer ✅255.255.255. What service is provided by POP3? - - - correct answer ✅POP3 retrieves email from the server by downloading the email to the local mail application of the client. What two security solutions are most likely to be used only in a corporate environment? - - - correct answer ✅1. Virtual private networks (VPN)
- Intrusion Prevention Systems (IPS) What is antivirus software? - - - correct answer ✅Applications that protect end devices from becoming infected with malicious software What mechanism is used by a router to prevent a received IPv packet from traveling endlessly on a network? - - - correct answer ✅It decrements the value of the TTL field by 1 and if
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An IPv6 enabled device sends a data packet with the destination address of FF02::2. What is the target of this packet? - - - correct answer ✅all IPv6 configured routers on the local link What are the three parts of an IPv6 global unicast address? - - - correct answer ✅subnet ID global routing prefix interface ID A client is using SLAAC to obtain an IPv6 address for its interface. After an address has been generated and applied to the interface, what must the client do before it can begin to use this IPv address? - - - correct answer ✅It must send an ICMPv6 Neighbor Solicitation message to ensure that the address is not already in use on the network. 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? - - - correct answer ✅Exit privileged EXEC mode and press Enter.
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What method is used to manage contention-based access on a wireless network? - - - correct answer ✅CSMA/CA What is a function of the data link layer? - - - correct answer ✅provides for the exchange of frames over a common local media What is the purpose of the TCP sliding window? - - - correct answer ✅to request that a source decrease the rate at which it transmits data What characteristic describes spyware? - - - correct answer ✅software that is installed on a user device and collects information about the user Which switching method drops frames that fail the FCS check? - - - correct answer ✅store-and-forward switching Two pings were issued from a host on a local network. The first ping was issued to the IP address of the default gateway of the host and
