To which of these does IP multicast send packets?（）A、a single hostB、a subset of hostsC、all hosts sequentiallyD、all hosts simultaneously
To which of these does IP multicast send packets?（）
- A、a single host
- B、a subset of hosts
- C、all hosts sequentially
- D、all hosts simultaneously
相关考题：
Which service does the ERX Edge Router support with a virtual router?() A.voice over IPB.wholesale servicesC.IP quality of serviceD.SNMP management
One of your customers wishes to use the NAS to perform DHCP functions and does not currently have a Layer 3 gateway in its production network. Which gateway mode is appropriate for this customer?() A.Virtual GatewayB.Real-IP GatewayC.NAT GatewayD.IP-IP Gateway
To which of these does IP multicast send packets?() A. a single hostB. a subset of hostsC. all hosts sequentiallyD. all hosts simultaneously
Refer to the exhibit. Which three statements correctly describe Network Device A?() A.With a network wide mask of 255.255.255.128, each interface does not require an IP address.B.With a network wide mask of 255.255.255.128, each interface does require an IP address on a unique IP subnet.C.With a network wide mask of 255.255.255.0, must be a Layer 2 device for the PCs to communicate with each other.D.With a network wide mask of 255.255.255.0, must be a Layer 3 device for the PCs to communicate with each other.E.With a network wide mask of 255.255.254.0, each interface does not require an IP address.
Which is the result of enabling IP Source Guard on an untrusted switch port that does not have DHCP snooping enabled？（）A、DHCP requests will be switched in the software， which may result in lengthy response times.B、The switch will run out of ACL hardware resources.C、All DHCP requests will pass through the switch untested.D、The DHCP server reply will be dropped and the client will not be able to obtain an IP address.
One of your customers wishes to use the NAS to perform DHCP functions and does not currently have a Layer 3 gateway in its production network. Which gateway mode is appropriate for this customer?（）A、Virtual GatewayB、Real-IP GatewayC、NAT GatewayD、IP-IP Gateway
Which two benefits does Cisco Unified CallConnector provide to customer communications?（）A、status of coworkers before placing a callB、Connect feature in Communications Manager ExpressC、IM contacts imported to an IP PhoneD、click-to-dial access only for WebEx meetingsE、Screen Pops for incoming calls
Refer to the exhibit. Which rule does the DHCP server use when there is an IP address conflict?（）A、The address is removed from the pool until the conflict is resolved.B、The address remains in the pool until the conflict is resolved.C、Only the IP detected by Gratuitous ARP is removed from the pool.D、Only the IP detected by Ping is removed from the pool.E、The IP will be shown, even after the conflict is resolved.
Which three IP multicast group concepts are true?（）A、If a packet is sent to a multicast group address, the multicast frame contains the source multicast address.B、A router does not have to be a member of a multicast group to recei ve multicast data.C、A router must be a member of a multicast group to send to the group.D、A router does not have to be a member of a multicast group to send to the group.E、If a packet is sent to a multicast group address, all members of the multic ast group will receive it.F、A router must be a member of a multicast group to receive multicast data.
To initiate testing， which port does a Cisco IOS IP SLA source use to send a control message to an IP SLA responder？ （）A、UDP port 2020B、UDP port 1967C、TCP port 2020D、ICMP port 1967
Which of the following is not a characteristic of Cisco Express Forwarding？（）A、The adjacency table is populated from a router’s ARP cacheB、CEF does not require the first packet of a data flow to be process switchedC、CEF maintains the Forward Information Base and the adjacency tableD、CEF can be enabled with the interface command ip cefE、The FIB is populated from a router’s IP routing tableF、On most router platforms CEF is enabled by default
A small office in which all workstations are using an ISP provided IP range has noticed a consistent decrease in network traffic speed. The decrease does not occur when the gateway to the ISP is disconnected. Which of the following should the administrator implement?（） A、Multicast addressingB、Load balancingC、Address translationD、DHCP
A system administrator needs to specify a set of FQDN to IP address mappings for a legacyserver； the administrator does not want the legacy server to be referenced by other servers. Which of the following should the administrator use to set this？（）A、DHCP serverB、DNS serverC、Host fileD、Route statements
Company.com is planning for an HACMP cluster and wants to know more about the network requirements. The plan is to use IPAT via IP aliasing and heartbeating via IP aliasing to preserve the corporate IP addresses. Currently the customer uses a separate VLAN for each individual subnet. Which statement best describes how HACMP co-exists with VLAN’s in this configuration？（） A、 All subnets in use by HACMP must be in the same VLAN.B、 All subnets in sue by HACMP must be in a different VLAN.C、 HACMP does not support multiple subnets when using heartbeating via IP aliasing.D、 HACMP does not support the use of VLAN.
A system does not have a nameserver defined for IP address resolution. What file does AIX use to determine the IP address of a remote system?（）A、/etc/hostsB、/etc/namesC、/etc/rc.tcpipD、/etc/resolv.conf
An attacker sends a low rate of TCP SYN segments to hosts， hoping that at least one port replies. Which type of an attack does this scenario describe？（）A、DoSB、SYN floodC、port scanningD、IP address sweep
单选题One of your customers wishes to use the NAS to perform DHCP functions and does not currently have a Layer 3 gateway in its production network. Which gateway mode is appropriate for this customer?（）AVirtual GatewayBReal-IP GatewayCNAT GatewayDIP-IP Gateway
多选题Refer to the exhibit. Which three statements correctly describe Network Device A?（）AWith a network wide mask of 255.255.255.128, each interface does not require an IP address.BWith a network wide mask of 255.255.255.128, each interface does require an IP address on a unique IP subnet.CWith a network wide mask of 255.255.255.0, must be a Layer 2 device for the PCs to communicate with each other.DWith a network wide mask of 255.255.255.0, must be a Layer 3 device for the PCs to communicate with each other.EWith a network wide mask of 255.255.254.0, each interface does not require an IP address.
单选题Which is the result of enabling IP Source Guard on an untrusted switch port that does not have DHCP snooping enabled？（）ADHCP requests will be switched in the software， which may result in lengthy response times.BThe switch will run out of ACL hardware resources.CAll DHCP requests will pass through the switch untested.DThe DHCP server reply will be dropped and the client will not be able to obtain an IP address.
单选题To which of these does IP multicast send packets?（）Aa single hostBa subset of hostsCall hosts sequentiallyDall hosts simultaneously
单选题Company.com is planning for an HACMP cluster and wants to know more about the network requirements. The plan is to use IPAT via IP aliasing and heartbeating via IP aliasing to preserve the corporate IP addresses. Currently the customer uses a separate VLAN for each individual subnet. Which statement best describes how HACMP co-exists with VLAN’s in this configuration？（）A All subnets in use by HACMP must be in the same VLAN.B All subnets in sue by HACMP must be in a different VLAN.C HACMP does not support multiple subnets when using heartbeating via IP aliasing.D HACMP does not support the use of VLAN.
单选题One of your customers wishes to use the NAS to perform DHCP functions and does not currently have a Layer 3 gateway in its production network. Which gateway mode is appropriate for this customer？（）A Virtual GatewayB Real-IP GatewayC NAT GatewayD IP-IP Gateway
多选题Which two benefits does Cisco Unified CallConnector provide to customer communications?（）Astatus of coworkers before placing a callBConnect feature in Communications Manager ExpressCIM contacts imported to an IP PhoneDclick-to-dial access only for WebEx meetingsEScreen Pops for incoming calls
单选题To which of these does IP multicast send packets？（）A a single hostB a subset of hostsC all hosts sequentiallyD all hosts simultaneously
多选题Which three IP multicast group concepts are true?（）AIf a packet is sent to a multicast group address, the multicast frame contains the source multicast address.BA router does not have to be a member of a multicast group to recei ve multicast data.CA router must be a member of a multicast group to send to the group.DA router does not have to be a member of a multicast group to send to the group.EIf a packet is sent to a multicast group address, all members of the multic ast group will receive it.FA router must be a member of a multicast group to receive multicast data.
多选题Which two EAP types does the Cisco Unified Wireless IP Phone 7921G firmware code version 1.3(x) support?（）AEAP-TLSBEAP-TTLSCEAP-SIMDPEAPv1/EAP-GTCELEAP