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27 Cards in this Set

  • Front
  • Back
Which layer of the OSI model is responsible for establishing, maintaining, synchronizing, and mapping communication dialog between entities in a network?

A. Network
B. Transport
C. Session
D. Presentation
C. Session

The session layer of the OSI model is responsible for performing these actions. The network layer translates logical network names and addresses into physical address. The transport layer provides flow control and error handling and aids in solving problems related to the transmission and receptions of segments of data over a network. The presentation layer translates data into a format that can be understood by the different application and the computers they run on.
At Which Layer of TCP/IP reference model does the TCP protocol operate?

A. Application
B. Presentation
C. Internet
D. Transport
E. Network
D. Transport

The TCP protocol operates at the transport layer of the TCP/IP reference model layer stack, while the IP protocol operates at the Internet layer. This application layer holds application-related protocols, such as HTTP,FTP,SNMP ant SMTP. The network layer interface layer provides media-related protocols, such as Ethernet and Frame Relay. The presentation layer does not exist in the TCP/IP reference model, only in the seven layer OSI reference model .
You need to ensure that your IPv4-enabled computer can access other subnets on you company's network, as well as the internet. Which addressing component should you ensure is specified properly?

A. IP Address
B. Subnet Mask
C. Default Gateway
D. DNS Server Address
E. WINS Address
C. Default Gateway

The default gateway is the IP address of the router that connects your computer's subnets on your company's network, as well as the internet. Although important for your computer's TCP/IP configuration, the other items given here do not address this objective.
Your computer is configured with the IP address 131.107.24.5. To which class does the IP address belong?

A. A
B. B
C. C
D. D
E. E
B. B

Any IP address in the range 128.0.0.0 to 191.255.255.255 belongs to class B.
CLASS A - 1.0.0.0-126.255.255.255
CLASS C - 192.0.0.0-233.255.255.255
CLASS D - 224.0.0.0-239.255.255.255
CLASS E - 240.0.0.0-254.255.255.255
Your network is configured to use DHCP for assignment of IP addresses and other TCP/IP configuration information such as DNS server address. Which of the following options should you ensure are selected in the Internet PRotocol Version 4 (TCP/IPv4) Properties dialog box? (choose two)

A. Obtain an IP address automatically
B. Use the following IP address
C. Obtain DNS Server address automatically
D. Use the following DNS Server address
A. Obtain an IP address automatically
C. Obtain DNS Server address automatically

To configure your computer to use the DHCP, you should ensure that Obtain an IP address automatically and Obtain DNS server address automatically option are selected. You would specify the other two options if you were configuring you computer to use static IP addressing.
You computer is configured to use the IPv4 address 169.254.183.32. What system is being used by your computer?

A. APIPA Automatic Private Internet Protocol Addressing
B. DHCP Dynamic Host Configuration Protocol
C. Alternate IP Configuration
D. Private IPv4 network addressing
A. APIPA Automatic Private Internet Protocol Addressing

If your computer is using an IPv4 address on the 169.254.0.0/16 network, it is configured to use APIPA. An address on this network is assigned when the computer is configured to receive an IP address automatically, but is unable to reach a DHCP server. An alternate IP configuration is a separate static IP address that you can configure on a computer that is using DHCP; it would not be using this address. Private IPv4 addressing is in use if the IP address is on any of the 10.0.0.0/8, 172.16.0.0/16 or 192.168.0.0/24 network
Your company has transitioned to using the IPv6 protocol and you are responsible for configuring internet servers that need direct access should you use doe this purpose?

A. Global Unicast
B. Link-Local Unicast
C. Site-Local Unicast
D. Multicast
E. Anycast
A. Global Unicast

A global unicast address is a globally routable Internet address that is equivalent to a public IPv4 address. A link-local unicast address is used for communication between neighboring nodes on the same link; a site-local unicast address is used for communication between nodes located in the the same site; a multicast address provides multiple interfaces to which packets are delivered; and an anycast address is utilized only as destination address assigned to routers. None of these address types are suitable for direct Internet contact. Note that the site-local address have been deprecated.
Your computer is using an IPv6 address on the fe80::/64 network. What type of IPv6 address is this?

A. Global Unicast
B. Site-Local Unicast
C. Link-Local Unicast
D. Teredo
C. Link-Local Unicast

A Link Local IPv6 address has an address prefix of fe80::/64. This address is equivalent to an APIPA-Configured IPv4 address IPv4 address. The other address type have different network prefixes.
You are responsible for adding IPv6 to your company;s network. Two computers that are separated by an IPv4-only network infrastructure are configured with the IPv6 address of fe80::5efe:172.16.21.3 and fe80::5efe:192.168.12.51, respectively. Which of the following address types is being used to ensure IPv6-IPv4 connectivity in this example?
A. ISATAP
B. Teredo
C. 6to4
D. IPv4-mapping
A. ISATAP

An ISATAP address uses the locally administrative interface identifier ::0:5efe:w.x.y.z where w.x.y.z is any private Unicast Ipv4 address, or ::200:5efe:w.x.y.x where w.x.y.z is a public IPv4 unicast. Teredo uses a 2001::/32 prefix, and 6to4 components mentioned do not utilize ICS in forwarding network traffic
You have configured a Windows Server 2008 R2, computer with the internet

A. 6to4Host
B. 6to4 Router
C. 6t04 Host/Router
D. 604 Relay
D. 6to4 Relay

6to4 relay forward 6to4 addressed traffic between 6to4 host.routers on the IPv4 Internet and hosts on the IPv6 Internet. Such computers use ICS to enable IPv6 forwarding on both the 6to4 tunneling and private interfaces. The other 6to4 components mentioned do not utilize ICS in forwarding network traffic.
Your computer is configured to use the DHCP on the IPv4 network 192.168.4.0, but is unable to connect to other computers. You run ipconfig /all and notice that the computer is using the address 169.254.231.98. You must try again immediately to connect to other network computers. Which parameter of the ipconfig command should you use?

A. /release
B. /renew
C. /flushdns
D. /displaydns
B. ipconfig /renew

You should use the ipconfig /renew command. This command forces the computer to try again to connect to the DHCp server and obtain an IP address lease. In this case, the computer was unable to access the DHCP server and configured itself with an APIPA address. The /release parameter releases the current IP address configuration but does not contact the DHCP server. The flushdns parameter flushes the content of the DNS cache. You would use the computer has connected to an incorrect network because of incorrect information in the DNS resource records. The /displaydns parameter displays the contents of the DNS cache. This is also useful if the computer connects to an incorrect network.
You are troubleshooting the inability of your computer to connect to others on the network, so you are planning to run several TCP/IP utilities. Arrange the following in sequence in which you should you should perform them.

A. Ping the computer's own IP address
B. Ping a host that is on another subnet
C. ping 127.0.0.1 or ::1
D. Run ipconfig /all
E. Ping the Default Gateway
D. Run ipconfig /all
C. ping 127.0.0.1 or ::1
A. Ping the computer's own IP address
E. Ping the Default Gateway
A. Ping the computer's own IP address
B. Ping a host that is on another subnet

You should perform the indicated actions in the following sequence: Run ipconfig /all to calidate the IP address, subnet mask, default gateway, and DNS server, and whether you are receiving a DHCP leased address. Ping 127.0.0.1 or ::1 to validate the TCP/IP is functioning. Ping the computer's IP address to eliminate a duplicate IP address as the problem. Ping the default gateway, which tells you whether data can travel on the current network segment. Ping a host that is on another subnet, which shows whether the router will be able to route your data. Microsoft exams might ask you to select actions you must perform and place them in the required sequence.
Computers on your network are configured to configured to use static IP addresses. Your computer has been able to connect to the network most mornings when you start up, but one morning when you do not arrive until 9:30 a.m., you computer is unable to connect. Which of the following is the most likely reason for this?

A. Your computer is configured with an IP address that is a duplicate of another one that has started up first
B. Your computer is using APIPA
C. Your computer is configured with an incorrect subnet mask
D. Your computer is configured with an alternate IP address and is using the alternate
A. Your computer is configured with an IP address that is a duplicate of another one that has started up first

If two computers on the network are configured with the same IP address, the first one will connect properly, but the second one that attempts to connect will fail to do so and this problem will result. If your computer is configured for static IP addressing, it will never use APIPA. If the subnet mask is incorrect, your computer would not connect to machines on another subnet at any time. If your computer is configured with static IP addressing, the alternate IP address option will be unavailable.
You are using the ping command to verify connectivity on you IPv6 network. You want to verify connectivity with a machine whose IPv6 address is fe80::9f:00ff:3a87:e364. Which of the following should you do? (each answer represents part of the solution. Choose three.)

A. Run the ipconfig /displaydns command
B. Run the netsh interface IPv6 show interface command
C. Run the netsh interface IPv6 show neighbors command
D. Run the netsh interface IPv6 delete neighbors command
E. Type ping fe80::9f:00ff:3a87:e364 %<ID>, where <ID> is the zone ID for the sending interface
B. Run the netsh interface IPv6 show interface command
D. Run the netsh interface IPv6 delete neighbors command
E. Type ping fe80::9f:00ff:3a87:e364 %<ID>, where <ID> is the zone ID for the sending interface

When verifying IPv6 network connectivity, you may need to specify a zone ID for the sending interface with the ping command. You can obtain this zone ID for the sending interface with PING command. You can obtain this zone ID by running either the netsh interface IPv6 show interface command or the ipconfig /all command (but not the ipconfig /displaydns command). Before using ping to check IPv6 network connectivity, clear the neighbor cache on you computer by running the netsh interlace IPv6 delete neighbors command. You may optionally run the netsh interface IPv6 show neighbors command to view the neighbor cache: however, you are not authorized to run this command. After you preform these steps, you can run the ping command. After you perform these steps, you can run the ping the command, suffixing it with the %<ID> parameter to include the zone ID.
Your client computer running Windows 7 Ultimate is requesting an IPv4 address from the local network's DHCP server. Which of the following messages are exchanged between the two computers? (choose all that apply; arrange you answers in the proper sequence in which the messages are exchanged.) A. DHCPREQUEST B. DHCPOFFER C. DHCPINFORM D. DHCPACK E. DHCPADVERTISE F. DHCPDISCOVER
F. DHCPDISCOVER
A. DHCPREQUEST
B. DHCPOFFER
D. DHCPACK

When an IPv4 client is requesting an address from the DHCP server, it first sends a DHCPDiscover message to locate a server. The server sends a DHCPOFFER message to offer an IP address lease. The client sends a DHCPREQUEST message to indicate it is requesting this lease, and finally, the server sends a DHCPPACK message to acknowledge acceptance of the lease. DHCPINFORM is used by workgroup DHCP servers for locating other DHCP servers on the network. There is no such message as DHCPADVERTISE; however DHCPv6 servers use an Advertise message ti offer a lease to a client computer. Note that on the exam, you must sequence your answers in the proper order or the answer will be considered incorrect.
By default, at what percentage of the lease time will a DHCP client first attempt to renew its lease?

A. 50
B. 80
C. 87.5
D. 95
A. 50

A client will first attempt to renew its lease with the DHCP server that provided its lease and configuration information after 50 percent of the lease time has elapsed. If a client still does not have a renewed license after 87.5 percent of the active lease period has gone by, it will attempt to communicate with any DHCP server on the network to secure IP addressing and configuration information. No specific action occurs after either 80 or 95 percent of the lease time.
An IPv6 client computer can automatically configure itself with a unique address by using router discovery without the use of a DHCPv6 server. What is this process called?

A. Stateful Address Configuration
B. Stateless Address Configuration
C. Managed Address Configuration
D. Automatic Private IP Addressing
B. Stateless Address Configuration

An IPv6 client can use the process of stateless address configuration to automatically configure itself without the use of DHCPv6 using a link-local address and router discovery. This process uses Router Solicitation and Router Advertisement messages which are exchanged with neighboring routers. Stateful address configuration used DHCPv6 to obtain non-link local address and other IPv6 configuration parameters. Managed address configuration is not a configuration procedure; it is a flag that determins when DHCP v6 is used to obtain IPv6 stateful address. Automatic IP addressing is used to auto-assign IPv4 addresses in the absence of a DHCP server; it is not used with IPv6
Which of the following messages are exchanged between an IPv6 client computer and DHCPv6 server when requesting confidentiality information? (Choose all that apply: arrange your answers in the proper sequence in which the messages are exchanged.)

A. Discover
B. Offer
C. Advertise
D. Request
E. Solicit
F. Confirm
G. Reply
E. Solicit
C. Advertise
D. Request
G. Reply

The message sent are Solicit, Advertise, Request, and reply. These correspond to the DHCPDISCOVER, DHCP OFFER,DHCPREQUEST< DHCPACK messages sent when requesting an IPv4 address lease. The confirm message is sent by a client to all servers to determine the validity of a client's configuration. The other options mentioned do not exist with DHCPv6.
Which of the following situations might result in a failure of DHCP to install properly on a Windows Server 2008 R2 Computer? (Choose two)

A. The computer is discovered with IPv6 only
B. The computer is configured to obtain an IP address automatically
C. The computer is not configured as a domain controller
D. You are logged onto the computer as a nonadministrative user
B. The computer is configured to obtain an IP address automatically
D. You are logged onto the computer as a nonadministrative user

To install DHCP on a server, you must be logged in as an administrator and the server must be configured with a static IP address. It does not matter whether the server is configured with IPv4, IPv6, or both; it also does not matter whether the server is a domain controller or not.
Under which of the following conditions is it most likely that you would want to specify the IP address of a WINS server when installing DHCP?

A. The network contains two or more segments separated by routers, and you want all network segments serviced from the same DHCP server.
B. Users will be frequently logging onto the network from remote locations and require the capability of locating resources on the local network.
C. The network still contains Windows XP and Windows Server 2003 computers, despite these operating systems being almost a decade old.
D. The network still contains Windows NT 4.0 or Windows 98 computers, despite these operating systems being more than a decade old
D. The network still contains Windows NT 4.0 or Windows 98 computers, despite these operating systems being more than a decade old

Pre-WIndows 2000 Computers, such as Windows NT or 9x, use WINS as a primary naming solution and may be unable to locate a WINS server. You would want a DHCP relay agent if the DHCP server needs to service clients on other network segments. Remote users logging onto the network use DNS rather than WINS to locate network resources. Windows XP and Windows Server 2003 computers are able to locate local resources with the aid of a DNS server; consequently, they do not need a WINS server for this purpose.
You are installing DHCP on a server that runs the Server Core Version of Windows server 2008 R2. Which of the following commands should you run to install DHCP on this server?

A. Start /w ocsetup DHCPServercore
B. DIsm /online /enable-feature /featurename:DHCPServerCore
C. servermanagercmd - install DHCPServerCore
D. Use Server Manager from a remote computer by connecting to the Server Core computer and remotely install DHCP
E. None of these. Server Core does not support DHCP installation
B. DIsm /online /enable-feature featurename:DHCPServerCore

You would use the Dism /online /enable-0feature /featurename:DHCPServercore command to install DHCP on a Windows Server 2008 R2 Server Core computer. The Start /w ocsetup DHCPServercore command would install DHCO on a ServerCore computer running the original version of Windows Server 2008 but not the R2 version. The servermanagercmd -install command installs certain roles and role features with Server Core, but not DHCP. It is not possible for security reasons to install a server role from a remote computer.
You are configuring options on your DHCP server that need to be applied to various subsets of computers on your network. You realize that there are four levels at which these options can be applied. Which of the following represents the sequence in which these options can be applied. Which of the following represnets the sequence in which these options are applied?

A. Server, Client, Class, Scope
B. Server, Scope, Class, Client
C. Scope, Class Client, Server
D. Client, Server, Scope, Class
B. Server, Scope, Class, Client

DHCP options are always applied in the sequence server, scope, class, client. This is important to know because options applied at a later stage of this sequence always overwrite options applied in earlier sequence. For example, server options are overwritten by conflicting option applied at any of the other levels and client options always overwrite other options.
You want all desktop computers to retain their IP leases for 14 days to reduce the network overhead on the DHCP Server. At the same time, you want the laptop computer connecting from external locations to give up their leases within 12 hours. What should you do?.

A. Specify a user class option that sets the lease interval to 12 hours for all laptop computers
B. Specify a vendor class option that sets the lease interval to 12 hours
C. For each laptop computer, specify a client option that sets the lease interval to 12 hours
D. Create a separate Scope for all laptop computers and specify a scop option that sets the lease interval to 12 hours
A. Specify a user class option that sets the lease interval to 12 hours for all laptop computers

You should specify a user class option that sets the lease interval to 12 hours for all laptop computers. This type of class is used to differentiate clients according to their type, such as desktop, laptop, or server computer. A vendor class option might be applicable if all laptops are obtained from one vendor but this is not normally the case. Specifying client options for each laptop would take more work than specifying a user class option, and would be open to error. It might be possible to use separate scope, but this would also take more effort and be error-prone.
You installed a DHCP on a Windows Server 2008 R2 computer and are now creating a scope that will deploy IP addresses to computers on the 192.168.3.0/24 network. The network contains three file servers that must always have the IP addresses 192.168.3.101, 192.168.3.102 and 192.168.3.103. These servers should receive other IP configuration information from the DHCP server. What should you do? (Each answer represents part of the solution. Choose Two.)

A. Create an exclusion range on the scope that prevents these addresses from being assigned to client computers
B. Create two scopes: one that assigns the IP address 192.168.3.1 to 192.168.3.254
C. Create three reservations in DHCP, one for each of the three file servers
D. Create a superscope that includes the IP addresses 192.168.3.101 to 192.168.3.103
E. Configure each of the three file servers with static IP addresses
A. Create an exclusion range on the scope that prevents these addresses from being assigned to client computers
C. Create three reservations in DHCP, one for each of the three file servers

To ensure that these servers retain their IP address but receive other IP configuration information from the DHCP server, you need to create an exclusion range within the scope plus reservations for each of the servers. The exclusion range prevents the server from assigning these IP addresses to other computers and the reservation ensures that these computers always receive their proper IP address. If you create two scopes as described in option B, the file servers would not receive other IP configuration information from the DHCP server. This is also true if you assign these servers static IP addresses. Superscopes are not relevant to this scenario.
You installed a DHCP on a Windows Server 2008 R2 computer that is member server on your companies AD DS network and created a scope that is to assign IP addresses on the 192.168.4.0 network. The next day, you notice tahat the DHCP server has not started and client computers on your network are autoconfiguring themselves with IP addresses on the 169.254.0.0 network. What do you need to do?

A. Deactivate and reactivate the scope
B. Create a scope option that disables the use of APIPA
C. Promote the DHCP Server to domain controller
D, Authorize the DHCP server in Active Directory
D, Authorize the DHCP server in Active Directory

You need to authorize the DHCP server in Active Directory. This requirement is necessary to prevent rogue DHCP Servers from coming online and assigning improper IP addresses to clients, which would disrupt the network communications. Reactivating the scope in this situation does not help. There is no such option in DHCP that would prevent the use of APIPA. A DHCO server on AD DS domain does not need to be a domain controller.
You are responsible for managing a DHCP server on your companies network, which consists of two subnets separated by a legacy router. You created two scopes, one for each subnet. The DHCP server is located on a subnet. A client computer on this subnet are receiving proper IP addressing information, but those on subnet B are auoconfiguring themselves with IP addresses on the 169.254.0.0 network. They cannot communicate with computers on the first subnet. What should you do?
A. Install a DHCP relay agent on a server located on subnet A
B. Install a DHCP relay agent on a server located on subnet B
C. Specify a scope option for client computers on subnet B that specifies the IP address of the DHCP server
D. Specify the IP address of the DHCP server manually in the TCP/IP properties of each computer on subnet B
B. Install a DHCP relay agent on a server located on subnet B

The DHCP relay agent is a server configured with RRAS that listens for DHCP broadcast messages from client computers on its own subnet and forwards these messages to the DHCP server. The relay agent must be configured on the subnet away from the DHCP server and not on the subnet (A in this case) where DHCO server is located. There is no scope option that specifies the IP address of a remote DHCP server. There is also no option within a clients TCP/IP Properties dialog box from which you can specify the IP address of a DHCP Server.
You are responsible for ensuring that file and web servers on you companies network always are configured with the same IP address, so you are creating IP address reservations on your DHCP server. When you attempt to reserve an IP address for a server named WEB1, you recieve a message stating the specified DHCP client is not a reserved client. What should you do to provide the proper IP address while ensuring that this server received all other required options?

A. Modify the DHCP scope to include the IP address to reserved for WEBI
B. Configure a scope option that specifies the IP address to be reserved for the WEBI
C. Locate the machine that is already using this IP address becomes available
D. Configure a Static IP addtes for WEBI instead
A. Modify the DHCP scope to include the IP address to reserved for WEBI

The message stating the specified DHCP client is not a reserved client indicates that you have attempted to reserve an IP address that is outsid the range of the DHCP server's scope. To correct the problem, modify the scope so that the desired IP address is within the scope or select a different IP address. There is no such option to specify a reserved IP address. IF a duplicate IP address were configured on another computer, you would still be able to create a reservation but connectivity problems would occur afterward. You could specify a static IP address at the server in question, but then this server would not receive other IP options from the DHCP server.