CCIE系列認證單項選擇題每日一練(2019.07.27)

單項選擇題
You use OSPF as your network routing protocol. You use the command show ip route and you see several routes described as O， O IA， O E1， and O E2. What routes are in your area？（）
A. O IA
B. O E1
C. O E2
D. O
單項選擇題
Multi Protocol Label Switching （MPLS） is a data-carrying mechanism that belongs to the family of packet-switched networks. For an MPLS label，if the stack bit is set to1，which option is true？（）
A.The stack bit will only be used when LDP is the label distribution protocol
B.The label is the last entry in the label stack.
C.The stack bit is for Cisco implementations exclusively and will only be used when TDP is the label distribution protocol.
D.The stack bit is reserved for future use.
單項選擇題
Which configuration prevents traffic that is sourced from the unique local address scope to be sent out ofthe link to the upstream service provider？（）
A.interface Ethernet0/0 I.pv6 traffic-filter NoULA out I.pv6 access-list NoULA Deny ipv6 FC00：：/8 any Permit ipv6 any any
B.interface Ethernet0/0 I.pv6 traffic-filter NoULA out I.pv6 access-list NoULA Deny ipv6 FC00：：/7 anyP ermit ipv8 any any
C.interface Ethernet0/0 I.pv6 access-group NoULA out I.pv6 access-list NoULA Deny ipv6 FC00：：/8 anyP ermit ipv6 any any
D.interface Ethernet0/0 I.pv6 access-group NoULA out I.pv6 access-list NoULA Deny ipv6 FC00：：/7 any Permit ipv6 any any
單項選擇題
Which of the following statements is correct regarding a hybridcrypto system？（）
A. uses symmetric crypto for keys distribution
B. uses symmetric crypto for proof of origin
C. uses symmetric crypto for fast encrypted/decryption
D. uses asymmetric crypto for message confidentiality
E. uses symmetric crypto to transmit the asymmetric keys that is thenused to encrypt a session
單項選擇題
In optical transmission systems， chirped lasers are used for the purpose of：（）.
A.Turning the laser to a specific ITU channel
B.Keeping the signal wavelength "locked" to a specific technology
C.Suppressing FWM and SBS non-linear effects
D.None ofthe above

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CCIE系列認證單項選擇題每日一練(2019.07.27)

You use OSPF as your network routing protocol. You use the command show ip route and you see several routes described as O， O IA， O E1， and O E2. What routes are in your area？（）

Multi Protocol Label Switching （MPLS） is a data-carrying mechanism that belongs to the family of packet-switched networks. For an MPLS label，if the stack bit is set to1，which option is true？（）

Which configuration prevents traffic that is sourced from the unique local address scope to be sent out ofthe link to the upstream service provider？（）

Which of the following statements is correct regarding a hybridcrypto system？（）

In optical transmission systems， chirped lasers are used for the purpose of：（）.

CCIE系列認證單項選擇題每日一練(2019.07.27)

You use OSPF as your network routing protocol. You use the command show ip route and you see several routes described as O， O IA， O E1， and O E2. What routes are in your area？ （）

Multi Protocol Label Switching （MPLS） is a data-carrying mechanism that belongs to the family of packet-switched networks. For an MPLS label，if the stack bit is set to1，which option is true？（）

Which configuration prevents traffic that is sourced from the unique local address scope to be sent out ofthe link to the upstream service provider？（）

Which of the following statements is correct regarding a hybridcrypto system？（）

In optical transmission systems， chirped lasers are used for the purpose of：（）.

You use OSPF as your network routing protocol. You use the command show ip route and you see several routes described as O， O IA， O E1， and O E2. What routes are in your area？（）

Multi Protocol Label Switching （MPLS） is a data-carrying mechanism that belongs to the family of packet-switched networks. For an MPLS label，if the stack bit is set to1，which option is true？（）

Which of the following statements is correct regarding a hybridcrypto system？（）

In optical transmission systems， chirped lasers are used for the purpose of：（）.