Firewall filters can perform which two actions？（）A、Log packet.B、Count packet.C、Set packet metric.D、Decrement packet TTL.E、Change destination IP address.

题目

Firewall filters can perform which two actions？（）

  • A、Log packet.
  • B、Count packet.
  • C、Set packet metric.
  • D、Decrement packet TTL.
  • E、Change destination IP address.
相似考题

1.●The typical firewall consists of two packet filters and a (an) (68) ．(68) A．routerB．bridgeC．applicationD．server

2.The typical firewall consists of two packet filters and a(an)(68).A．routerB．bridgeC．applicationD．server

3.Which two packet attributes contribute to the identification of a session? ()(Choose two.)A. destination portB. TTLC. IP optionsD. protocol number

4.阅读下面的短文，回答问题 [When an IP packet arrives at a router, generally the router looks at the destination address of the packet, and forwards the packet to one of its network interfaces. The forwarding decision is usually done by looking up the destination address from another data structure called a forwarding table. The forwarding table is created by the router using the routing table and possible routing policies existing in the router. The router then creates a table where it lists which networks are accessible through which of the router’s network interfaces. An IP router looks at every IP packet individually and does the forwarding decision on a packet-by-packet basis. If something changes in the router’s routing table, a packet can take a different route from a preceding packet even if it has the same destination.] From the paragraph above，we can see that the router （ ） a forwarding table according to the routing table and possible routing policies existing in the router. When an IP packet arrives at a router, the （ ） part of packet is normally checked by the router. An IP router checks every IP Packet individually and makes the forwarding decision based on （ ）.A．is generating B．generate C．is generated D．generates A．forwarding table B．network interfaces C．routing policies D．destination address A．the destination address and network interfaces B．forwarding table and network interfaces C．the destination address and forward table D．routing policies and routing table

参考答案和解析
正确答案:A,B
更多“Firewall filters can perform which two actions？（）A、Log packet.B、Count packet.C、Set packet metric.D、Decrement packet TTL.E、Change destination IP address.”相关问题

  • 第1题：

    Firewall filter policers can perform which two actions?()

    A. Set the next hop.

    B. Discard packets.

    C. Set loss priority.

    D. Sample packet content.


    参考答案：B, C

  • 第2题：

    ●We have already covered the topic of network addresses. The first(71) in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is called a direct broadcast address. It is used by a (72) to send a packet to all hosts in a specific network. All hosts will accept a packet having this type of destination address. Note that this address can be used only as a (73)address in an lP packet. Note also that this special address also reduces the number of available hostid for each netid in classes A,B,and C.

    In classes A,B,and C,an address with all Is for the netid and hostid (32 bits) defines a( 74) address in the current network.A host that wants to send a message to every other host can use this address as a destination address in an IP packet. However,a router will block a packet having this type ofaddress to confine the broadcasting to the (75) network. Note that this address belongs to class E.

    (71) A.datagram

    B.function

    C.address

    D.service

    (72) A.router

    B.switch

    C.hub

    D.firewall

    (73)A.source

    B.destination

    C.local

    D.remote

    (74) A.unicast

    B.multicast

    C.broadcast

    D.anycast

    (75) A.neighbor

    B.next

    C.remote

    D.local


    正确答案：C,A,B,C,D

  • 第3题：

    A packet is evaluated against three user-defined terms within a firewall filter and no match is found. What correctly describes the action the firewall filter will take for this packet?（）

    • A、The filter will permit the packet and take no additional action
    • B、The filter will reject the packet and send an ICMP message back to the sender
    • C、The filter will discard the packet and take no additional action
    • D、The filter will permit the packet and write a log entry to the firewall log

    正确答案:C

  • 第4题：

    What are two possible actions an IOS IPS can take if a packet in a session matches a signature？（）

    • A、reset the connection
    • B、forward the packet
    • C、check the packet against an ACL
    • D、drop the packet

    正确答案:A,D

  • 第5题：

    A router receives an IPv6 packet which is 2000 bytes in length. The MTU of the outgoing interface is 1500 bytes. Which action will the router take?（）

    • A、Forward the packet.
    • B、Fragment the packet.
    • C、Drop the packet silently.
    • D、Drop the packet and send an ICMPv6 message.

    正确答案:D

  • 第6题：

    A router receives a packet on interface 172.16.45.66/26. The source IP of the packet is 172.16.45.127/26 and the destination is 172.16.46.191/26.How will the router handle the packet?（）

    • A、The destination is a host on another subnet, so the router will not forward the packet.
    • B、The destination is a host on the same subnet, so the router will forward the packet.
    • C、The destination is a broadcast address, so the router will not forward the packet.
    • D、The destination is a network address, so the router will forward the packet.

    正确答案:C

  • 第7题：

    Which two packet attributes contribute to the identification of a session? （）(Choose two.)

    • A、destination port
    • B、TTL
    • C、IP options
    • D、protocol number

    正确答案:A,D

  • 第8题：

    Firewall filter policers can perform which two actions？（）

    • A、Set the next hop.
    • B、Discard packets.
    • C、Set the loss priority.
    • D、Sample the packet content.

    正确答案:B,D

  • 第9题：

    When an SRX series device receives an ESP packet, what happens?（）

    • A、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, it will
    • B、If the destination IP address in the outer IP header of ESP does not match the IP address of the ingress interface, it will
    • C、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based packet.
    • D、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based of inner header, it will decrypt the packet.

    正确答案:C

  • 第10题：

    多选题
    Firewall filter policers can perform which two actions?（）
    A

    Set the next hop.

    B

    Discard packets.

    C

    Set loss priority.

    D

    Sample packet content.


    正确答案： C,A
    解析： 暂无解析

  • 第11题：

    多选题
    If an edge Label Switch Router （LSR） is properly configured，which three combinations are possible？（）
    A

    A received IP packet is forwarded based on the IP destination address and the packet is sent as an IP packet.

    B

    An IP destination exists in the IP forwarding table. A received labeled packet is dropped because the label is not found in the LFIB table.

    C

    There is an MPLS label-switched path toward the destination. A received IP packet is dropped because the destination is not found in the IP forwarding table.

    D

    A received IP packet is forwarded based on the IP destination address and the packet is sent as a labeled packet.

    E

    A received labeled IP packet is forwarded based upon both the label and the IP address.

    F

    A received labeled packet is forwarded based on the label. After the label is swapped，the newly labeled packet is sent.


    正确答案： F,A
    解析： 暂无解析

  • 第12题：

    多选题
    Firewall filters can perform which two actions？（）
    A

    Log packet.

    B

    Count packet.

    C

    Set packet metric.

    D

    Decrement packet TTL.

    E

    Change destination IP address.


    正确答案： E,D
    解析： 暂无解析

  • 第13题：

    Which two firewall filter actions will terminate the processing and evaluation of a packet?()

    A. permit

    B. accept

    C. deny

    D. discard


    参考答案：B, D

  • 第14题：

    We have already covered the topic of network addresses. The first（71） in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is called a direct broadcast address. It is used by a.（） to send a packet to all hosts in a specific network. All hosts will accept a packet having this type of destination address. Note that this address can be used only as a （73）address in an lP packet. Note also that this special address also reduces the number of available hostid for each netid in classes A,B,and C.
    In classes A,B,and C,an address with all Is for the netid and hostid (32 bits) defines a（74） address in the current network.A host that wants to send a message to every other host can use this address as a destination address in an IP packet. However,a router will block a packet having this type ofaddress to confine the broadcasting to the （75） network. Note that this address belongs to class E.

    A.router
    B.switch
    C.huB.
    D.firewall

    答案：A
    解析：

  • 第15题：

    If an edge Label Switch Router （LSR） is properly configured，which three combinations are possible？（）

    • A、A received IP packet is forwarded based on the IP destination address and the packet is sent as an IP packet.
    • B、An IP destination exists in the IP forwarding table. A received labeled packet is dropped because the label is not found in the LFIB table.
    • C、There is an MPLS label-switched path toward the destination. A received IP packet is dropped because the destination is not found in the IP forwarding table.
    • D、A received IP packet is forwarded based on the IP destination address and the packet is sent as a labeled packet.
    • E、A received labeled IP packet is forwarded based upon both the label and the IP address.
    • F、A received labeled packet is forwarded based on the label. After the label is swapped，the newly labeled packet is sent.

    正确答案:A,D,F

  • 第16题：

    Which two statements are true when source/destination filters are enabled? （）(Choose two.)

    • A、Excluded traffic is not accelerated.
    • B、Excluded traffic is only compressed.
    • C、Source/destination filter applies to all traffic sent from LAN to WAN.
    • D、Source/destination filters work in packet interception mode using RIPv2.

    正确答案:A,C

  • 第17题：

    Which two firewall filter actions will terminate the processing and evaluation of a packet?（）

    • A、permit
    • B、accept
    • C、deny
    • D、discard

    正确答案:B,D

  • 第18题：

    A stateless firewall requires a technician to:（）

    • A、Write more packet filters.
    • B、Write less packet filters.
    • C、Purchase a license for states.
    • D、Upgrade definitions manually

    正确答案:A

  • 第19题：

    In JUNOS Software， which three packet elements can be inspected to determine if asession already exists？（）

    • A、IP protocol
    • B、IP time-to-live
    • C、source and destination IP address
    • D、source and destination MAC address
    • E、source and destination TCP/UDP port

    正确答案:A,C,E

  • 第20题：

    Firewall filters can perform which two actions?（）

    • A、Log packets.
    • B、Set packet metrics.
    • C、Count packets.
    • D、Decrement packet's TTL value.

    正确答案:A,C

  • 第21题：

    多选题
    In JUNOS Software， which three packet elements can be inspected to determine if asession already exists？（）
    A

    IP protocol

    B

    IP time-to-live

    C

    source and destination IP address

    D

    source and destination MAC address

    E

    source and destination TCP/UDP port


    正确答案： D,B
    解析： 暂无解析

  • 第22题：

    单选题
    A packet is evaluated against three user-defined terms within a firewall filter and no match is found. What correctly describes the action the firewall filter will take for this packet?（）
    A

    The filter will permit the packet and take no additional action

    B

    The filter will reject the packet and send an ICMP message back to the sender

    C

    The filter will discard the packet and take no additional action

    D

    The filter will permit the packet and write a log entry to the firewall log


    正确答案： B
    解析： 暂无解析

  • 第23题：

    多选题
    Firewall filters can perform which two actions?（）
    A

    Log packets.

    B

    Set packet metrics.

    C

    Count packets.

    D

    Decrement packet's TTL value.


    正确答案： D,B
    解析： 暂无解析

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