640-875 Latest Exam (Aug 2018)

[Free] 2018(Aug) Ensurepass Cisco 640-875 Dumps with VCE and PDF 71-80

September 7, 2018

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Building Cisco Service Provider Next-Generation Networks, Part 1 (SPNGN1)

Question No: 71 – (Topic 7)

Which two statements about Packet over SONET are true? (Choose two.)

  1. POS is a Layer 2 technology that uses PPP in ATM encapsulation and SONET framing.

  2. The Layer 2 frame is encapsulated into a generic HDLC header (not Cisco proprietary HDLC) and placed into the appropriate SONET Payload Envelope.

  3. The FCS field can be set to 16 bits on one end and 32 bits on the other end of a POS connection without causing any connectivity issues.

  4. The Cisco POS interface supports Cisco HDLC and PPP encapsulation.

  5. POS can be used in a point-to-point or point-to-multipoint environment.

Answer: B,D

Question No: 72 DRAG DROP – (Topic 7)

Ensurepass 2018 PDF and VCE


Ensurepass 2018 PDF and VCE

Question No: 73 – (Topic 7)

Refer to the exhibit.

Ensurepass 2018 PDF and VCE

Based on the configurations shown, why is the serial link in up/down status?

  1. Mismatch hostnames

  2. Passwords are in plain text

  3. Mismatch of authentication type

  4. Wrong configuration mode for command input

Answer: C

Question No: 74 DRAG DROP – (Topic 7)

Ensurepass 2018 PDF and VCE


Ensurepass 2018 PDF and VCE

Question No: 75 – (Topic 7)

A Passive Optical Network is a point-to-multipoint FTTx network architecture that relies on which of the following?

  1. Electrically powered optical splitters

  2. Unpowered optical splitter

  3. Customer optical network terminal

  4. Network interface controller

Answer: B

Question No: 76 – (Topic 7)

Which two commands can be used to enable LACP when configuring the interfaces for a 40 gigabit etherchannel? (Choose two.)

  1. switch (config-if)# channel-group 1 mode active

  2. switch (config-if)# channel-group 1 mode auto

  3. switch (config-if)# channel-group 1 mode desirable

  4. switch (config-if)# channel-group 1 mode passive

  5. switch (config-if)# channel-group 1 mode LACP

Answer: A,D

Question No: 77 – (Topic 7)

Which component is integrated into the Cisco IPoDWDM interfaces?

  1. ROADM

  2. transponder

  3. electrical cross connect

  4. E-O-E converter

  5. SONET/SDH controller

Answer: B

Topic 8, Security in the Network

Question No: 78 – (Topic 8)

Which feature is used to protect the control plane of the router?

  1. Port security

  2. uRPF

  3. Routing protocol authentication

  4. VRF

  5. SSH

  6. SSL

Answer: C

Question No: 79 – (Topic 8)

Refer to the exhibit.

Ensurepass 2018 PDF and VCE

Which two statements are true regarding the following configuration?

  1. Users are authenticated using RADIUS.

  2. TACACS is configured for remote AAA.

  3. A TACACS AAA server group is configured.

  4. A TACACS server can be reached through the GigabitEthernet0/1/0/1 interface.

  5. Logging is configured to the local database.

Answer: B,D

Question No: 80 – (Topic 8)

Which best describes the relationship between user groups and task groups?

  1. User groups include task ID#39;s that are nested task groups.

  2. Groups can be nested within other groups.

  3. Tasks groups are not related to user groups.

  4. Task groups are assigned to user groups to established privileged levels.

Answer: D

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