What is the purpose of a network mask?（）A、It is used in conjunction with the wildcard mask to determine the number of hosts on a networkB、It is used to define which parts of the IP address are allocated to host addresses and network prefixesC、It is used to hide subnets from external networks by masking the subnets with NATD、It is used to differentiate a network as a classful network or a classless network
What is the purpose of a network mask?（）
- A、It is used in conjunction with the wildcard mask to determine the number of hosts on a network
- B、It is used to define which parts of the IP address are allocated to host addresses and network prefixes
- C、It is used to hide subnets from external networks by masking the subnets with NAT
- D、It is used to differentiate a network as a classful network or a classless network
相关考题：
In any NAT (network address translation) configuration, what is the Inside Global IP address?() A. The summarized address for all internal subnetted addresses.B. A private IP address assigned to a host on the inside network.C. A registered address that represents an inside host to an outside network.D. A unique IP address used on an internal networkE. Non of the above
In network that support VLSM, which network mask should be used for point－to－point WAN links in order to reduce waste of IP addresses?() A./24B./30C./27D./26E./32
Which of the following IP hosts would be valid for PC users, assuming that a ／27 network mask was used for all of the networks?() A.15.234.118.63B.83.121.178.93C.134.178.18.56D.192.168.19.37E.201.45.116.159F.217.63.12.192
An administrator must assign static IP addresses to the servers in a network.For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP propertied box for the sales server?（）A. IP address:192.168.20.14 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.9B. IP address:192.168.20.254 Subnet Mask:255.255.255.0 Default Gateway:192.168.20.1C. IP address:192.168.20.30 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.25D. IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.17E. IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.25
When a DHCP server is configured, which two IP addresses should never be assignable to hosts? （）A、network or subnetwork IP addressB、broadcast address on the networkC、IP address leased to the LAND、IP address used by the interfacesE、manually assigned address to the clientsF、designated IP address to the DHCP server
What are the "bound IP addresses" used for in LDP？（）A、For each such address and mask /32, one label binding is created.B、As the TCP endpoint, IP addresses are used by the LDP session.C、These addresses are used to find the label binding to put in the LFIB, by looking up these IP addresses in the routing table.D、These addresses are used for penultimate hop popping (PHP) when forwarding packets to the next router directly.
What is the purpose of a network mask?（）A、It is used to identify the maximum hop count of a subnetworkB、It is used to identify an IP address as either private or publicC、It is used to identify the network to which an IP address belongsD、It is used to identify the total number of bits present in an IP address
In network that support VLSM, which network mask should be used for point-to-point WAN links in order to reduce waste of IP addresses?（）A、/24B、/30C、/27D、/26E、/32
In any NAT (network address translation) configuration, what is the Inside Global IP address?（）A、The summarized address for all internal subnetted addresses.B、A private IP address assigned to a host on the inside network.C、A registered address that represents an inside host to an outside network.D、A unique IP address used on an internal networkE、Non of the above
When selecting a Network Interface Card (NIC), which of the following factors need to be considered?（）A、The type of application used on the networkB、The type of system bus used by the computersC、The type of memory installed in each computerD、The type of media used in the network topologyE、The type of protocols used in the networkF、The physical layout of the network hosts
There are 3 steps to confirm whether a range of IP address can be summarized. When of thefollowing is used in each of these 3 steps？（）A、 The first number in the contiguous block of addressesB、 The last number in the contiguous block of addressesC、 The size of the contiguous block of addressesD、 The subnet mask of the original network address
The following configuration command was entered into a router:ip route 172.16.3.0 255.255.255.0 192.168.2.4 Which of the following statements are true regarding this configuration change?（）A、The default administrative distance is used.B、The command is used to establish a static route.C、The command is used to configure the router interfaces.D、The command is used to establish a stub network.E、The subnet mask for the source address is 255.255.255.0
What is the purpose of a network mask?（）A、It is used to identify the maximum hop count of a subnetwork.B、It is used to identify an IP address as either private or public.C、It is used to identify the network to which an IP address belongs.D、It is used to identify the total number of bits present in an IP address.
Which two statements are true of a network mask?（）A、A subnet mask specifies the portion of an IP address that is in a binary formatB、A subnet mask specifies the portion of an IP address that is in a decimal formatC、A subnet mask specifies the portion of an IP address that represents a network prefixD、A subnet mask specifies the portion of an IP address that represetns network hosts
Which two statements are true of a network mask?（）A、A subnet mask specifies the portion of an IP address that is in a binary format.B、A subnet mask specifies the portion of an IP address that is in a decimal format.C、A subnet mask specifies the portion of an IP address that represents a network prefix.D、A subnet mask specifies the portion of an IP address that represents network hosts.
Which two statements about subnet masks are true?（）A、If a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.B、If a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.C、If a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.D、If a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.
What is the purpose of a network mask?（）A、It is used in conjunction with the wildcard mask to determine the number of hosts on a networkB、It is used to define which parts of the IP address are allocated to host addresses and network prefixesC、It is used to hide subnets from external networks by masking the subnets with NATD、It is used to differentiate a network as a classful network or a classless network
单选题Which two statements are true of a network mask?（）AA subnet mask specifies the portion of an IP address that is in a binary formatBA subnet mask specifies the portion of an IP address that is in a decimal formatCA subnet mask specifies the portion of an IP address that represents a network prefixDA subnet mask specifies the portion of an IP address that represetns network hosts
单选题In network that support VLSM, which network mask should be used for point-to-point WAN links in order to reduce waste of IP addresses?（）A/24B/30C/27D/26E/32
多选题Which two statements about subnet masks are true?（）AIf a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.BIf a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.CIf a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.DIf a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.
单选题There are 3 steps to confirm whether a range of IP address can be summarized. When of thefollowing is used in each of these 3 steps？（）A The first number in the contiguous block of addressesB The last number in the contiguous block of addressesC The size of the contiguous block of addressesD The subnet mask of the original network address
单选题What is the purpose of a network mask?（）AIt is used in conjunction with the wildcard mask to determine the number of hosts on a networkBIt is used to define which parts of the IP address are allocated to host addresses and network prefixesCIt is used to hide subnets from external networks by masking the subnets with NATDIt is used to differentiate a network as a classful network or a classless network
单选题What is the purpose of a network mask?（）AIt is used to identify the maximum hop count of a subnetwork.BIt is used to identify an IP address as either private or public.CIt is used to identify the network to which an IP address belongs.DIt is used to identify the total number of bits present in an IP address.
单选题In any NAT (network address translation) configuration, what is the Inside Global IP address?（）AThe summarized address for all internal subnetted addresses.BA private IP address assigned to a host on the inside network.CA registered address that represents an inside host to an outside network.DA unique IP address used on an internal networkENon of the above
多选题Which two statements are true of a network mask?（）AA subnet mask specifies the portion of an IP address that is in a binary format.BA subnet mask specifies the portion of an IP address that is in a decimal format.CA subnet mask specifies the portion of an IP address that represents a network prefix.DA subnet mask specifies the portion of an IP address that represents network hosts.
多选题Which of the following IP hosts would be valid for PC users, assuming that a /27 network mask was used for all of the networks?（）A15.234.118.63B83.121.178.93C134.178.18.56D192.168.19.37E201.45.116.159F217.63.12.192
单选题What is the purpose of a network mask?（）AIt is used to identify the maximum hop count of a subnetworkBIt is used to identify an IP address as either private or publicCIt is used to identify the network to which an IP address belongsDIt is used to identify the total number of bits present in an IP address
单选题What are the "bound IP addresses" used for in LDP？（）AFor each such address and mask /32, one label binding is created.BAs the TCP endpoint, IP addresses are used by the LDP session.CThese addresses are used to find the label binding to put in the LFIB, by looking up these IP addresses in the routing table.DThese addresses are used for penultimate hop popping (PHP) when forwarding packets to the next router directly.