503_1

11 September 2022
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40 test answers

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question
You have an interface on a router with the IP address of 192.168.192.10/29. What is the broadcast address the hosts will use on this LAN? Answers: 192.168.192.15 192.168.192.31 192.168.192.63 192.168.192.127 192.168.192.255
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192.168.192.15
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The 1024 - 65535 range of ports is also known as the "well-known" range. Answers: True False
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False
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Which of the following IPv6 features is an enhancement to IPv4? (Choose all that apply.) Answers: Larger address space Works at the Internetwork and Transport layers Built-in security Connectionless communication
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Larger address space Built-in security
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An IPv6 address is made up of how many bits? Answers: 32 48 64 128
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128
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A network with a CIDR notation of /26 would have what subnet mask? Answers: a. 255.255.255.192 b. 255.255.255.224 c. 255.255.255.0 d. 255.255.255.240
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a. 255.255.255.192
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What is the maximum number of host IP addresses that can exist in a Class B network? Answers: a. 1022 b. 32,766 c. 8190 d. 65,534
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d. 65,534
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The fundamental difference between a switch and a router is that a switch belongs only to its local network and a router belongs to two or more local networks. Answers: True False
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True
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In the classful addressing scheme, what range of network addresses is considered a Class B? Answers: a. 1.x.y.z to 126.x.y.z b. 224.x.y.z to 255.x.y.z c. 128.0.x.y to 191.255.x.y d. 192.0.0.x to 223.255.255.x
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c. 128.0.x.y to 191.255.x.y
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How many /64 subnets can be created within a /56 prefix? Answers: a. 1024 b. 2048 c. 512 d. 256
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d. 256
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Which of the following best describes a client? Answers: A computer's primary role in the network is to give other computers access to network resources and services. A computer's primary role in the network is to run user applications and access network resources. It's the software that responds to requests for network resources. The OS installed on a computer is designed mainly to share network resources.
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A computer's primary role in the network is to run user applications and access network resources.
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Which protocol does Ping use? Answers: TCP ARP ICMP BootP
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ICMP
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Segmentation of a data stream happens at which layer of the OSI model? Answers: Physical Data Link Network Transport
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Transport
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Which of the following best describes a MAC address? Answers: A 24-bit number expressed as 12 decimal digits Two 24-bit numbers, in which one is the OUI A 48-bit number composed of 12 octal digits A dotted decimal number burned into the NIC
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Two 24-bit numbers, in which one is the OUI
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In network communication, the address is used to deliver a frame to the correct computer on the network. (Choose all that apply.) Answers: MAC Logical IP Physical
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MAC IP
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What is the subnetwork number of a host with an IP address of 172.16.66.0/21? Answers: 172.16.36.0 172.16.48.0 172.16.64.0 172.16.0.0
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172.16.64.0
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The FTP protocol utilizes UDP, while TFTP uses TCP for data transmission. Answers: True False
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False
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The Windows Remote Desktop application utilizes what protocol to provide secure, encrypted transmissions? Answers: a. Secure Sockets Layer (SSL) b. Secure Shell (SSH) c. File Transfer Protocol (FTP) d. Remote Desktop Protocol (RDP)
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d. Remote Desktop Protocol (RDP)
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TCP/IP uses to look up a computer's IP address, given its name. Answers: DNS Ping MAC TCP
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DNS
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On a Linux-based system, what command can be used to display TCP/IP information associated with every interface on the system? Answers: a. if status b. ipconfig /all c. ip show d. ifconfig -a
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d. ifconfig -a
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Only Class B and Class C networks can be subnetted. Answers: True False
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False
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An IP address of 192.168.18.73/28 has what network ID? Answers: a. 192.168.18.0 b. 192.168.18.32 c. 192.168.16.0 d. 192.168.18.64
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d. 192.168.18.64
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The TCP and UDP protocols both exist at what layer of the OSI model? Answers: a. Network b. Transport c. Presentation d. Application
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b. Transport
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In the TCP/IP model, what layer combines the responsibilities of the Application, Presentation, and Session layers from the OSI model? Answers: a. Application b. Transport c. Internet d. Link
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a. Application
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A network with 10 bits remaining for the host portion will have how many usable host addresses? Answers: a. 1022 b. 4192 c. 2046 d. 510
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a. 1022
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By default, when using classful addressing, how many bits exist in the host portion of a Class A address? Answers: a. 8 b. 24 c. 32 d. 16
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b. 24
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Which Wi-Fi standard can provide the highest bandwidth? Answers: 802.11a 802.11b 802.11n 802.11g
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802.11n
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What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask? Answers: 14 15 16 30 31 62
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30
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An OS's capability to run more than one application or process at the same time is referred to which of the following? Answers: Multicore Doubletime Multitasking Multiprocessor Interrupt processing
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Multitasking
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What type of connector is used most commonly with network wiring? Answers: RJ-11 RJ-45 BNC MT-RJ
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RJ-45
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What is a defining characteristic of a bus topology based network? Answers: a. Devices are daisy-chained together in a single line. b. Devices are connected directly to a centralized networking device, known as a network switch. c. Devices are directly attached to a network router, which forwards data to intended destinations. d. Devices are connected to two adjacent devices, and communication priority is granted by a token.
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a. Devices are daisy-chained together in a single line.
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Which of the following IP addresses would be a loopback IP address? Answers: a. 192.168.1.1 b. 169.254.0.1 c. 224.0.0.1 d. 127.0.0.1
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d. 127.0.0.1
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What part of a MAC address serves as the extension identifier, or device ID? Answers: a. The first 24 bits of the MAC address. b. The last 12 bits of the MAC address. c. The first 12 bits of the MAC address. d. The last 24 bits of the MAC address.
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d. The last 24 bits of the MAC address.
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On certain Cisco products, what command can be used to create and send helper messages that support several types of UDP traffic, including DHCP, TFTP, DNS, and TACACS+? Answers: a. ip new helper b. ip create helper server c. ip helper-address d. set ip helper address
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c. ip helper-address
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Which two statements describe the IP address 10.16.3.65/23? (Choose two.) Answers: The subnet address is 10.16.3.0 255.255.254.0. The lowest host address in the subnet is 10.16.2.1 255.255.254.0. The last valid host address in the subnet is 10.16.2.254 255.255.254.0. The broadcast address of the subnet is 10.16.3.255 255.255.254.0. The network is not subnetted.
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The lowest host address in the subnet is 10.16.2.1 255.255.254.0. The broadcast address of the subnet is 10.16.3.255 255.255.254.0.
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What is by far the most popular DNS server software available? Answers: a. Microsoft DNS b. Dnsmasq c. BIND d. Oracle Resolver
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c. BIND
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A Windows computer on your network is having issues resolving queries for a specific domain, but not other domains. Other computers on the same network resolve the name just fine. What command can you issue that might fix the problem? Answers: a. ipconfig /release b. ipconfig /flushdns c. ipconfig /renew d. ipconfig /refresh
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b. ipconfig /flushdns
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You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which classful subnet mask would you use? Answers: 255.255.255.192 255.255.255.224 255.255.255.240 255.255.255.248
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255.255.255.224
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Which of the following is a reason to subnet? (Choose all that apply.) Answers: Networks can be divided into logical groups. Subnetting eliminates the need for routers. Subnetting can decrease the size of broadcast domains. There's no need to assign static IP addresses to each computer.
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Subnetting can decrease the size of broadcast domains. Networks can be divided into logical groups.
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At what layer of the OSI model does a network switch normally operate? Answers: a. Layer 5 b. Layer 4 c. Layer 2 d. Layer 3
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c. Layer 2
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Which of the following is considered a Layer 2 device? Answers: Computer Switch Router Hub
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Switch