CompTIA Network+ Practice Tests. Craig Zacker
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is a network consultant with a client who wants him to design the Local Area Network (LAN) for his company's new branch office. The site consists of a building with Unshielded Twisted Pair (UTP) cable already installed, which the client considered a major selling point when selecting the property. He wants Ralph to install the fastest possible LAN using the existing cable. After examining the site, Ralph notes that the cable is Category 5 (CAT5), installed using a star topology, and that the individual cable runs are all less than 100 meters long. Which of the following Ethernet physical layer specifications can Ralph use for the new network to provide the fastest transmission speeds without replacing the cable?10GBase-T100Base-TX1000Base-T1000Base-LX1000Base-SX
141 Which Institute of Electrical and Electronics Engineers (IEEE) standards for Ethernet support 10-megabit-per-second (Mbps) communications, and what are the correct segment limitations for each standard? (Choose all that apply.)10Base2; segment maximum is 100 meters10Base2; segment maximum is 185 meters10Base5; segment maximum is 500 meters100Base5; segment maximum is 500 meters10Base-T; segment maximum is 100 meters10Base-T segment maximum is 328 meters
142 Which of the following are Ethernet cable types that must be configured in a bus topology? (Choose all that apply.)RG-8RG-10RG-14RG-58
143 Ed has been hired by a company to upgrade its network infrastructure. The current network is 10 Mbps Ethernet running on Category 5 (CAT5) twisted pair cable. There are 100 computers on the network, all of which have 10/100/1000 multispeed network interface adapters. The computers are all connected to hubs. Users are complaining that the network is too slow, and connections are sometimes dropped. Management wants to upgrade to the fastest Ethernet standard possible, using the existing cabling, and still keep costs to a minimum. Which of the following implementations should Ed recommend to the client?Upgrade to 100Base-TX and keep the existing hubs.Upgrade to 1000Base-T and keep the existing hubs.Upgrade to 100Base-FX and replace all of the hubs with switches.Upgrade to 1000Base-T and replace all of the hubs with switches.Upgrade to 100Base-SX and replace all of the hubs with switches.
144 Ralph has been asked to create some new patch cables that will be used to connect patch panel ports to the network switches. He has been told to use the T568B pinout standard for all of the cable connectors. Ralph gathers the materials and the tools needed to complete the task, but he is not sure about the T568B pinout. Which of the following pinouts must Ralph use when creating the patch cables?White/orange, orange, white/green, blue, white/blue, green, white/brown, brownWhite/green, green, white/orange, blue, white/blue, orange, white/brown, brownWhite/orange, orange, white/green, green, white/blue, blue, white/brown, brownWhite/brown, white/green, white/orange, blue, white/blue, orange, green, brown
145 It is Ralph's first day working for a consultancy that does network cable installations. His new boss hands him a spool of Category 6 cable, a large plier-like device, and a bag of little clear plastic components and tells him to “get started on fives and tens.” What is Ralph expected to do?Pull cable runsCreate patch cablesAttach keystone connectorsInstall a patch panel
146 Wavelength division multiplexing is a fiber-optic technique for carrying multiple signals on a single network medium. There are several types of this technique, including Coarse Wavelength Division Multiplexing (CWDM), Dense Wavelength Division Multiplexing (DWDM), and Bidirectional Wavelength Division Multiplexing (BWDM, or just WDM). Which of the following is not one of the ways in which these types of multiplexing differ?They use different wavelength spacings.They carry different numbers of channels on a single medium.They provide different amounts of signal amplification.None of the above.
147 Which of the following services enables computers on a private IPv4 network to access the Internet using a registered IP address?DHCPNATDNSNTP
148 Which of the following best defines the concept of the dual stack?A computer with two network interface adaptersA computer with two installed operating systemsA computer with two sets of networking protocolsA computer with connections to two different network segments
149 Network Address Translation (NAT) operates at which layer of the Open Systems Interconnection (OSI) model?Data linkNetworkTransportApplication
150 Which of the following is the most accurate description of the subnetting process on an IPv4 network?You extend the IP address by adding bits for a subnet identifier.You borrow bits from the network identifier to create a subnet identifier.You borrow bits from the host identifier to create a subnet identifier.You create a subnet identifier by borrowing half of the bits from the network identifier and half from the host identifier.
151 Which of the following IPv4 addresses are you unable to assign to a network host? (Choose all that apply.)1.1.1.1229.6.87.3103.256.77.49.34.0.1
152 How many bits are allocated to the host identifier in an IPv4 address on the 10.72.0.0/17 network?8151617
153 Which of the following are not valid IPv4 addresses in the private address space defined by RFC 1918? (Choose all that apply.)10.16.225.1172:33:19:7192.168.254.7710.255.255.255172.15.2.9
154 Alice has been instructed to create an IPv4 network with 8 subnets and 30 hosts per subnet. She has been assigned a Class C network address. Which of the following subnet masks will she have to use?255.255.255.128255.255.255.192255.255.255.224255.255.255.240255.255.255.248255.255.255.252
155 Which of the following is the default subnet mask for an IPv4 Class A network?255.0.0.0255.255.0.0255.255.255.0255.255.255.255
156 Which of the following is the range of IPv4 addresses that Automatic Private IP Addressing (APIPA) assigns to DHCP clients that cannot access a DHCP server?10.0.0.0 to 10.0.255.255169.254.0.0 to 169.254.255.255192.168.0.0 to 192.168.0.255224.0.0.0 to 224.0.255.255
157 In which IPv4 class is the address 127.0.0.1 found?Class AClass BClass CNone of the above
158 Which of the following is a valid IPv6 address?fe00::b491:cf79:p493:23ff2001:0:49e6:39ff:8cf5:6812:ef56fe00::c955:c944:acdd:3fcb2001:0:44ef68:23eb:99fe:72bec6:ea5f
159 To which class does the following IPv4 address belong: 190.126.14.251?Class AClass BClass CClass D
160 Classless Inter-Domain Routing (CIDR) is a standard for IPv4 addressing that includes the ability to create subnets using any number of IP address bits, rather than using 8-bit blocks. Which of the following terms describes this ability?VLSMAPIPAVLANEUI-64
161 Ralph has been instructed to use the network address 10.12.0.0/14 for the new network he is installing. What subnet mask value should he use when configuring his computers?255.248.0.0255.252.0.0255.254.0.0255.255.248.0255.255.252.0255.255.254.0
162 Ed has been hired to design a company's network. The company has an assigned Class C network address of 192.168.30.0. Ed's client wants the network to be configured with 10 subnets, each with 14 hosts. Is this configuration possible with the given address, and if so, how many subnets and hosts can Ed create on the network?Yes, this will work. By using 4 subnet bits, it is possible for Ed to create up to 16 subnets. He can then use the remaining 4 host bits to create 14 hosts on each subnet.No, this will not work. A Class C address cannot be subnetted to create 8 subnets.No, this will not work. Although there are sufficient bits available to create 10 subnets, there are not enough bits left over for Ed to create 14 hosts per subnet.Yes, this will work. Ed can create 10 subnets with 14 hosts per subnet. By using 3 subnet bits, he can create 10 subnets, which leaves 5 bits to create up to 30 hosts per subnet.
163 What is the greatest number of subnets you can create with a Class A IPv4 address if you use a 14-bit subnet identifier?2561,0221,02416,38216,384
164 Alice has been asked to design her company's Internet Protocol (IPv4) addressing scheme. The company has been assigned a Class C network address of 192.168.30.0. Alice's director wants 4 subnets with 28 hosts per subnet. How many bits are required for subnets? How many bits are required for hosts? What will the new subnet mask be for this network?3 subnet bits, 5 host bits, and subnet mask 255.255.255.2404 subnet bits, 3 host bits, and subnet mask 255.255.255.2483 subnet bits, 5 host bits, and subnet mask 255.255.255.2245 subnet bits, 3 host bits, and subnet mask 255.255.255.192
165 A network interface adapter in a workstation has a hexadecimal MAC address of 001F9EFC7AD0. Which of the following would be the adapter's IPv6 link local address based on