多选题In JUNOS Software， which three packet elements can be inspected to determine if asession already exists？（）AIP protocolBIP time-to-liveCsource and destination IP addressDsource and destination MAC addressEsource and destination TCP/UDP port

题目

多选题

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

IP protocol

IP time-to-live

source and destination IP address

source and destination MAC address

source and destination TCP/UDP port

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第1题

Which of the following descriptions about IP spoofing is correct？（）A、IP source address is forgedB、IP destination address is forgedC、IP TCP source port is forgedD、IP TCP destination port is forgedE、None of above

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第2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.

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第3题

下面能够表示"禁止从129.9.0.0网段中的主机建立与202.38.16.0网段内的主机的WWW端口的连接"的访问控制列表是（）。A、acl101 rule deny tcp source129.9.0.00.0.255.255 destination 202.38.16.00.0.0.255 destination-port equal wwwB、acl101 rule deny tcp source129.9.0.00.0.255.255 destination 202.38.16.00.0.0.255 destination-port equal 80C、acl100 rule deny udp source129.9.0.00.0.255.255 destination 202.38.16.00.0.0.255 destination-port equal wwwD、acl99 rule deny udp source129.9.0.00.0.255.255 destination 202.38.16.00.0.0.255 destination-port equal www

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第4题

The EtherChannel between your LAN switch and the Internet router is not load-balancing efficiently. On the switch，there are several workstations with valid IP ranges. Which load-balance algorithms can you use in the switch in order to optimize this load balancing？（）A、source IP addressB、destination IP addressC、per-packet load balanceD、destination MAC addressE、source MAC address

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第5题

You work as a network technician at Company. Your boss， Mrs.， is interested in LWAPP （Lightweight Access Point Protocol）. What should you tell her regarding this technology？（）A、 LWAPP is a proprietary protocol， and because of its very high overhead it is not widely adopted.B、 Control traffic is encapsulated in UDP packets with a source port of 1024 and a destination port of 12223.C、 Layer 3 LWAPP is a UDP/IP Frame that requires a Cisco Aironet AP to obtain an IP address using DHCP.D、 Data traffic is encapsulated in UDP packets with a source port of 1024 and a destination port of 12223.E、 Control traffic is encapsulated in TCP packets with a source port of 1024 and a destination port of 12223.F、 Data traffic is encapsulated in TCP packets with a source port of 1024 and a destination port of 12223.

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第6题

What does a Layer 2 switch use to decide where to forward a received frame?（）A、source MAC addressB、source IP addressC、source switch portD、destination IP addressE、destination port addressF、destination MAC address

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第7题

What three pieces of information can be used in an extended access list to filter traffic (Choose three.)（）。A、protocolB、VLAN numberC、TCP or UDP port numbersD、source switch port numberE、source IP address and destination IP addressF、source MAC address and destination MAC address

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多选题In JUNOS Software， which three packet elements can be inspected to determine if asession already exists？（）AIP protocolBIP time-to-liveCsource and destination IP addressDsource and destination MAC addressEsource and destination TCP/UDP port

题目

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