Which of the addresses below is an example of a valid unicast address?() A.172.31.128.255./18B.255.255.255.255C.192.168.24.59/30D.224.0.0.5E.All of the above
Which of the addresses below is an example of a valid unicast address?()
A.172.31.128.255./18
B.255.255.255.255
C.192.168.24.59/30
D.224.0.0.5
E.All of the above
相关考题：
Given that you have a class B IP address network range, which of the subnet masks below will allow for 100 subnets with 500 usable host addresses per subnet?A．255.255.0.0B．255.255.224.0C．255.255.254.0D．255.255.255.0E．255.255.255.224
Which two of the addresses below are available for host addresses on the subnet 192.168.15.19／28?() A.192.168.15.17B.192.168.15.14C.192.168.15.29D.192.168.15.16E.192.168.15.31F.None of the above
Which two statements describe characteristics of IPv6 unicast addressing?() A. Global addresses start with 2000::/3.B. Link-local addresses start with FE00:/12.C. Link-local addresses start with FF00::/10.D. There is only one loopback address and it is ::1.E. If a global address is assigned to an interface, then that is the only allowable address for the interface.
Given the address 192.168.20.19／28, which of the following are valid host addresses on this subnet?() A.192.168.20.29B.192.168.20.16C.192.168.20.17D.192.168.20.31E.192.168.20.0
What is the difference between the IPv6 addresses ：：/0 and ：：/128？（）A、：：/0 is the unspecified address， and ：：/128 is the multicast addressB、：：/0 is the unicast address， and ：：/128 is the anycast addressC、：：/0 is the unicast address， and ：：/128 is the multicast addressD、：：/0 is the anycast address， and ：：/128 is the multicast addressE、：：/0 is the default route， and ：：/128 is the unspecified addressF、：：/0 is the anycast address， and ：：/128 is the default address
You suspect that a hacker may be performing a MAC address flooding attack somewhere within the network. Which description correctly describes a MAC address flooding attack？（）A、The attacking device spoofs a source MAC address of a valid host currently in the CAM table. The switch then forwards frames destined for the valid host to the attacking device.B、Frames with unique， invalid destination MAC addresses flood the switch and exhaust CAM table space. The result is that new entries cannot be inserted because of the exhausted CAM table space， and traffic is subsequently flooded out all ports.C、The attacking device crafts ARP replies intended for valid hosts. The MAC address of the attacking device then becomes the destination address found in the Layer 2 frames sent by the valid network device.D、The attacking device crafts ARP replies intended for valid hosts. The MAC address of the attacking device then becomes the source address found in the Layer 2 frames sent by the valid network device.E、The attacking device spoofs a destination MAC address of a valid host currently in the CAM table. The switch then forwards frames destined for the valid host to the attacking device.F、Frames with unique， invalid source MAC addresses flood the switch and exhaust CAM table space. The result is that new entries cannot be inserted because of the exhausted CAM table space， and traffic is subsequently flooded out all ports.G、None of the other alternatives apply
Which three IP addresses are valid multicast addresses?（）A、169.254.23.59B、223.254.255.254C、225.1.1.1D、227.43.34.2E、238.3.3.3F、249.1.2.3
Given the address 192.168.20.19/28, which of the following are valid host addresses on this subnet?（）A、192.168.20.29B、192.168.20.16C、192.168.20.17D、192.168.20.31E、192.168.20.0
Which two statements describe characteristics of IPv6 unicast addressing?（）A、Global addresses start with 2000::/3.B、Link-local addresses start with FE00:/12.C、Link-local addresses start with FF00::/10.D、There is only one loopback address and it is ::1.E、If a global address is assigned to an interface, then that is the only allowable address for the interface.
What is the difference between the IPv6 addresses ::/0 and :: /128? （）A、::/0 is the default route, and ::/128 is the unspecified address.B、::/0 is the unicast address, and ::/128 is the anycast address.C、::/0 is the anycast address, and ::/128 is the multicast address.D、::/0 is the unicast address, and ::/12 8 is the multicast address.E、::/0 is the unspecified address, and ::/128 is the multicast address.F、::/0 is the anycast address, and ::/128 is the default address.
Given that you have a class B IP address network range, which of the subnet masks below will allow for 100 subnets with 500 usable host addresses per subnet?（）A、255.255.0.0B、255.255.224.0C、255.255.254.0D、255.255.255.0E、255.255.255.224
Which option is not a valid method to assign the lowest-order 64-bit field of an IPv6 unicast address？（）A、ARPB、manual assignmentC、DHCPv6D、auto-configured based on the 48-bit MAC addressE、auto-generated pseudo-random number
The network is being flooded with invalid Layer 2 addresses， causing switch CAM tables to befilled and forcing unicast traffic to be transmitted out all switch ports. Which type of Layer 2 attackis being used here？（）A、MAC spoofingB、VLAN hoppingC、MAC address floodingD、DHCP floodingE、Session hijacking
Which statement describes the process of dynamically assigning IP addresses by the DHCP server?（）A、Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.B、Addresses are permanently assigned so that the hosts uses the same address at all times.C、Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made.D、Addresses are leased to hosts, which periodically contact the DHCP server to renew the lease.
Which two of these statements are true of IPv6 address representation?（）A、There are four types of IPv6 addresses: unicast, multicast, anycast, and broadcast.B、A single interface may be assigned multiple IPv6 addresses of any type.C、Every IPv6 interface contains at least one loopback address.D、The first 64 bits represent the dynamically created interface ID.E、Leading zeros in an IPv6 16 bit hexadecimal field are mandatory.
You are designing the IP addressing scheme for the new Barcelona office. Which network address or addresses are valid for your design?（）A、10.10.10.0/28B、10.10.255.0/24C、131.15.0.0/24D、151.10.10.0/24E、192.168.11.0/25
单选题You suspect that a hacker may be performing a MAC address flooding attack somewhere within the network. Which description correctly describes a MAC address flooding attack？（）AThe attacking device spoofs a source MAC address of a valid host currently in the CAM table. The switch then forwards frames destined for the valid host to the attacking device.BFrames with unique， invalid destination MAC addresses flood the switch and exhaust CAM table space. The result is that new entries cannot be inserted because of the exhausted CAM table space， and traffic is subsequently flooded out all ports.CThe attacking device crafts ARP replies intended for valid hosts. The MAC address of the attacking device then becomes the destination address found in the Layer 2 frames sent by the valid network device.DThe attacking device crafts ARP replies intended for valid hosts. The MAC address of the attacking device then becomes the source address found in the Layer 2 frames sent by the valid network device.EThe attacking device spoofs a destination MAC address of a valid host currently in the CAM table. The switch then forwards frames destined for the valid host to the attacking device.FFrames with unique， invalid source MAC addresses flood the switch and exhaust CAM table space. The result is that new entries cannot be inserted because of the exhausted CAM table space， and traffic is subsequently flooded out all ports.GNone of the other alternatives apply
单选题What is the difference between the IPv6 addresses ::/0 and :: /128? （）A::/0 is the default route, and ::/128 is the unspecified address.B::/0 is the unicast address, and ::/128 is the anycast address.C::/0 is the anycast address, and ::/128 is the multicast address.D::/0 is the unicast address, and ::/12 8 is the multicast address.E::/0 is the unspecified address, and ::/128 is the multicast address.F::/0 is the anycast address, and ::/128 is the default address.
多选题Which two of these statements are true of IPv6 address representation? （）AThere are four types of IPv6 addresses: unicast, multicast, anycast, and broadcast.BA single interface may be assigned multiple IPv6 addresses of any type.CEvery IPv6 interface contains at least one loopback address.DThe first 64 bits represent the dynamically created interface ID.ELeading zeros in an IPv6 16 bit hexadecimal field are mandatory.
单选题The network is being flooded with invalid Layer 2 addresses， causing switch CAM tables to befilled and forcing unicast traffic to be transmitted out all switch ports. Which type of Layer 2 attackis being used here？（）AMAC spoofingBVLAN hoppingCMAC address floodingDDHCP floodingESession hijacking
多选题Which three IP addresses are valid multicast addresses?（）A169.254.23.59B223.254.255.254C225.1.1.1D227.43.34.2E238.3.3.3F249.1.2.3
多选题Which three IP multicast address related statements are true？ （Choose three.） （）AMulticast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live （TTL） greater than 1.BMulticast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers.CMulticast addresses 224.0.0.13 and 224.0.0.22 are reserved link-local addresses used by PIMv2 and IGMPv3.DBecause they would map to overlapping IP multicast MAC addresses， multicast addresses 224.0.1.1 and 238.1.1.1 could not be used together.EMulticast address 224.0.1.1 has been reserved for the Network Time Protocol （NTP） by the IANAFThe administratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addresses.
多选题You are designing the IP addressing scheme for the new Barcelona office. Which network address or addresses are valid for your design?（）A10.10.10.0/28B10.10.255.0/24C131.15.0.0/24D151.10.10.0/24E192.168.11.0/25
多选题Which three IP multicast address related statements are true?（）AMulticast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3BBecause they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1 and 238.1.1.1 could not be used toget herCMulticast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live (TTL) greater than 1DMulticast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routersEThe a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addressesFMulticast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA
单选题Which of the addresses below is an example of a valid unicast address?（）A172.31.128.255./18B255.255.255.255C192.168.24.59/30D224.0.0.5EAll of the above
单选题What is the difference between the IPv6 addresses ：：/0 and ：：/128？（）A：：/0 is the unspecified address， and ：：/128 is the multicast addressB：：/0 is the unicast address， and ：：/128 is the anycast addressC：：/0 is the unicast address， and ：：/128 is the multicast addressD：：/0 is the anycast address， and ：：/128 is the multicast addressE：：/0 is the default route， and ：：/128 is the unspecified addressF：：/0 is the anycast address， and ：：/128 is the default address
单选题Which option is not a valid method to assign the lowest-order 64-bit field of an IPv6 unicast address？（）AARPBmanual assignmentCDHCPv6Dauto-configured based on the 48-bit MAC addressEauto-generated pseudo-random number