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?, virus, worm, phishing, spam, A user is executing a tracert to a remote device. At what point would a router, which is in the path to the destination device, stop forwarding the packet?, when the router receives an ICMP Time Exceeded message, when the RTT value reaches zero, when the host responds with an ICMP Echo Reply message, when the value in the TTL field reaches zero, when the values of both the Echo Request and Echo Reply messages reach zero, A network technician is researching the use of fiber optic cabling in a new technology center. Which two issues should be considered before implementing fiber optic media? (Choose two.)Fiber optic cabling requires different termination and splicing expertise from what copper cabling requires., Fiber optic cabling requires different termination and splicing expertise from what copper cabling requires., Fiber optic cabling requires specific grounding to be immune to EMI., Fiber optic cabling is susceptible to loss of signal due to RFI., Fiber optic cable is able to withstand rough handling., Fiber optic provides higher data capacity but is more expensive than copper cabling., Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet?, Header Length, Differentiated Services, Time-to-Live, Fragment Offset, A user is complaining that an external web page is taking longer than normal to load.The web page does eventually load on the user machine. Which tool should the technician use with administrator privileges in order to locate where the issue is in the network?, ping, nslookup, tracert, ipconfig /displaydns, What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.), IP addresses, interface descriptions, MAC addresses, next-hop addresses, Layer 1 statuses, speed and duplex settings, 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.), The source port field identifies the running application or service that will handle data returning to the PC., The TCP process running on the PC randomly selects the destination port when establishing a session with the server., 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., TCP is the preferred protocol when a function requires lower network overhead., The TCP source port number identifies the sending host on the network., What is an advantage to using a protocol that is defined by an open standard?, A company can monopolize the market., The protocol can only be run on equipment from a specific vendor., An open standard protocol is not controlled or regulated by standards organizations., It encourages competition and promotes choices., 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?, the network domain of the destination host, the IP address of the default gateway, the MAC address of the destination host, the MAC address of the default gateway, Why would a Layer 2 switch need an IP address?, to enable the switch to send broadcast frames to attached PCs, to enable the switch to function as a default gateway, to enable the switch to be managed remotely, to enable the switch to receive frames from attached PCs, What characteristic describes a VPN?, software on a router that filters traffic based on IP addresses or applications, software that identifies fast-spreading threats, a tunneling protocol that provides remote users with secure access into the network of an organization, a network device that filters access and traffic coming into a network, What are two functions that are provided by the network layer? (Choose two.), directing data packets to destination hosts on other networks, placing data on the network medium, carrying data between processes that are running on source and destination hosts, providing dedicated end-to-end connections, providing end devices with a unique network identifier, Which two commands can be used on a Windows host to display the routing table? (Choose two.), netstat -s, route print, show ip route, netstat -r, tracert, Which information does the show startup-config command display?, the IOS image copied into RAM, the bootstrap program in the ROM, the contents of the current running configuration file in the RAM, the contents of the saved configuration file in the NVRAM, What are three characteristics of the CSMA/CD process? (Choose three.), The device with the electronic token is the only one that can transmit after a collision., 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., A jam signal indicates that the collision has cleared and the media is not busy., Devices can be configured with a higher transmission priority., What is one main characteristic of the data link layer?, It generates the electrical or optical signals that represent the 1 and 0 on the media., It converts a stream of data bits into a predefined code., It shields the upper layer protocol from being aware of the physical medium to be used in the communication., It accepts Layer 3 packets and decides the path by which to forward the packet to a remote network., Which two statements are correct about MAC and IP addresses during data transmission if NAT is not involved? (Choose two.), Destination IP addresses in a packet header remain constant along the entire path to a target host., Destination MAC addresses will never change in a frame that goes across seven routers., Every time a frame is encapsulated with a new destination MAC address, a new destination IP address is needed.Destination and source MAC addresses have local significance and change every time a frame goes from one LAN to another., Destination and source MAC addresses have local significance and change every time a frame goes from one LAN to another.A packet that has crossed four routers has changed the destination IP address four times., A packet that has crossed four routers has changed the destination IP address four times., What is a benefit of using cloud computing in networking?, Technology is integrated into every-day appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated., Network capabilities are extended without requiring investment in new infrastructure, personnel, or software., End users have the freedom to use personal tools to access information and communicate across a business network., Home networking uses existing electrical wiring to connect devices to the network wherever there is an electrical outlet, saving the cost of installing data cables., What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted?, 255.255.255.0, 255.255.255.240, 255.255.255.128, 255.255.255.192, 255.255.255.224, 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?, 256, 512, 1024, 4096, 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 it failed. The second ping was issued to the IP address of a host outside the local network and it was successful. What is a possible cause for the failed ping?, The default gateway is not operational., The default gateway device is configured with the wrong IP address., Security rules are applied to the default gateway device, preventing it from processing ping requests., The TCP/IP stack on the default gateway is not working properly.

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