| Question 1 | When choosing a MAN service, which of the following is something you typically don't consider? A. Level of service B. Scalability C. Connection type D. Hardware
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| A1: | Answer D is correct. Hardware is typically not a main consideration when choosing a MAN service. When choosing a MAN service, you normally consider cost, scalability, transparency, level of service, and the type of connection needed, which makes answers A, B, and C incorrect. |
| Question 2 | Which type of MAN service uses access link connections? |
| A2: | Answer C is correct. Transparent LAN services use access link connections. Directed VLAN services use trunk connections, which makes answer A incorrect. Answers B and D are nonexistent services. |
| Question 3 | Which is true concerning SONET? A. Uses fiber cabling B. Uses a single ring C. Uses copper cabling D. Uses a dual ring
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| A3: | Answers A and D are correct. SONET uses fiber cabling and a dual ring (for redundancy), which makes answers B and C incorrect. |
| Question 4 | Which of the following MAN services is the most scalable? |
| A4: | Answer B is correct. DWDM is the most scalable it uses bandwidth more efficiently than SONET, which makes answer A incorrect. DWDM supports up to 200 wavelength frequencies for connections. CWDM only supports 8, which makes answer C incorrect. |
| Question 5 | With Q-in-Q, the service provider… A. Replaces your 802.1Q VLAN tag with its own B. Inserts its VLAN tag before yours C. Encapsulates your VLAN frame in its own D. None of these answers
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| A5: | Answer B is correct. With Q-in-Q (tag stacking), the provider inserts its own VLAN tag before yours and recomputes the FCS value. Therefore, answers A and C are incorrect. C is incorrect because the frame is tagged, not encapsulated. And because there is a correct answer, D is also incorrect. |
| Question 6 | With tag stacking, CDP and BPDU information can be tunneled through a provider's network. |
| A6: | Answer A is correct. STP information, including BPDUs and CDP information, can be tunneled through a provider's network with Q-in-Q (tag stacking). Therefore, answer B is incorrect. |
| Question 7 | Which of the following is not an advantage of Q-in-Q? A. PVST is supported. B. The provider's VLAN implementation is transparent to your implementation. C. It supports both point-to-point and point-to-multipoint connections. D. It is an open standard.
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| A7: | Answer D is correct. Q-in-Q is Cisco-proprietary, but is currently being worked on by IETF. Answers A, B, and C are advantages and therefore are incorrect answers. |
| Question 8 | Q-in-Q supports how many VLANs by the provider? A. 64 B. 256 C. 4,096 D. No restrictions
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| A8: | Answer C is correct. With Q-in-Q, the provider supports up to 4,096 VLANs. Therefore, answers A, B, and D are incorrect. |
| Question 9 | Which of the following is true concerning EoMPLS? A. Uses a Layer 2 core B. User's MAN connections appear as a logical switch C. Requires multipoint connections D. Supports more than 4,096 VLANs
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| A9: | Answer D is correct. EoMPLS is more scalable than Q-in-Q because it supports more than 4,096 internal VLANs for the provider. EoMPLS provides a Layer 3 core, making answer A incorrect. The user's MAN connections appear as a logical segment, not a switch, which makes answer B incorrect. EoMPLS supports point-to-point connections, which makes answer C incorrect. |
| Question 10 | How many tags does EoMPLS use? |
| A10: | Answer B is correct. EoMPLS uses two tags: a tunnel and a VC tag. Therefore answers A, C, and D are incorrect. |
