What characteristic describes a Trojan horse?
What characteristic describes a Trojan horse? an attack that slows or crashes a device or network service malicious software or code running on an end device a network device that…
What are three characteristics of the CSMA/CD process? (Choose three.)
What are three characteristics of the CSMA/CD process? (Choose three.) After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired. A jam signal…
What is a function of the data link layer?
What is a function of the data link layer? provides delivery of data between two applications provides for the exchange of frames over a common local media provides end-to-end delivery…
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?
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…
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?
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…
What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.)
What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.) speed and duplex settings MAC addresses next-hop addresses interface descriptions IP addresses Layer…
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 wants to 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.)
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…
Match the application protocols to the correct transport protocols.
Match the application protocols to the correct transport protocols. Explanation & Hint: DHCP (Dynamic Host Configuration Protocol) - Typically uses UDP. DHCP is used for dynamic IP addressing and operates…
Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? (Choose three.)
Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? (Choose three.) TCP is…
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.)
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…
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.)
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.) mobility options…
What mechanism is used by a router to prevent a received IPv4 packet from traveling endlessly on a network?
What mechanism is used by a router to prevent a received IPv4 packet from traveling endlessly on a network? It checks the value of the TTL field and if it…
Which range of link-local addresses can be assigned to an IPv6-enabled interface?
Which range of link-local addresses can be assigned to an IPv6-enabled interface? FE80::/10 FDEE::/7 FF00::/8 FEC0::/10 Explanation: Link-local addresses are in the range of FE80::/10 to FEBF::/10. The original IPv6…
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 IPv6 address?
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…
What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64?
What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64? 2001:DA48::/64 2001::/64 2001:DA48:FC5:A4::/64 2001:DA48:FC5::A4:/64 Explanation: The /64 represents the network and subnet IPv6 fields. The fourth field of hexadecimal…
What happens when the transport input ssh command is entered on the switch vty lines?
What happens when the transport input ssh command is entered on the switch vty lines? The switch requires a username/password combination for remote access. The SSH client on the switch is enabled.…
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?
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…
Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.)
Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) ---> Case A handles communication between upper layer networking…
A client packet is received by a server. The packet has a destination port number of 143. What service is the client requesting?
A client packet is received by a server. The packet has a destination port number of 143. What service is the client requesting? Telnet SSH IMAP FTP Explanation & Hint:…
When a computer is pinging another computer for the first time, what type of message does it place on the network to determine the MAC address of the other device?
When a computer is pinging another computer for the first time, what type of message does it place on the network to determine the MAC address of the other device?…
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