Q131. Your customer asks you to assist with their traffic policy design. They want to guarantee a minimum amount of bandwidth to certain traffic classes. Which technique would you advise them to implement?
A. Modular QoS CLI
B. committed accessrRate
C. policy-based routing
D. traffic shaping
Answer: A
Q132. You are redesigning an OSPF v2 network and must migrate some links. You are concerned that there are different subnet masks. Which two link types will still form an OSPF adjacency even if there are subnet mask mismatches? (Choose two.)
A. virtual
B. broadcast
C. point-to-multipoint
D. non-broadcast
E. point-to-point
Answer: AE
Q133. Refer to the exhibit.
Service Provider A and Service Provider B have agreed to a strategic interconnect relationship that will allow them access into each other's geographies by using an inter-AS eBGP VPNv4 multihop between route reflectors. Which two options will accomplish this scenario? (Choose two.)
A. RR 1 and RR 2 peer using multihop eBGP VPNv4 to exchange prefixes.
B. ASBR 1 and ASBR 2 act as inline route reflectors that set themselves as the next-hop.
C. An LSP is formed between ASBR 1 and ASBR 2 using eBGP IPv4.
D. An LSP is formed between ASBR 1 and ASBR 2 using eBGP VPNv4.
E. RR 1 and RR 2 peer using multihop eBGP IPv4 to exchange prefixes.
Answer: AC
Q134. Refer to the exhibit.
Assume that no multicast optimization is done on LAN switches A and B. Which feature can be used to optimize multicast traffic forwarding in this situation?
A. Enable IGMP snooping querier on both switches.
B. Configure a static MAC entry for the multicast server.
C. Disable IGMP snooping on both switches.
D. Disable the IGMP query election process.
E. Enable PIM Snooping on both switches.
Answer: A
Q135. A junior engineer is implementing one of your optical designs and asks about CWDM (Coarse Wavelength Division Multiplexing). Which two features describe CWDM? (Choose two.)
A. typically used over long distances, but requires optical amplification
B. allows up to 32 optical carriers to be multiplexed onto a single fiber
C. shares the same transmission window as DWDM
D. uses the 850-nm band
E. Passive CWDM devices require no electrical power.
Answer: CE
Q136. You have been hired by a startup company to provide optical services using MPLS-TP. Which three options describe reasons to use the MPLS-TP standard in your design? (Choose three.)
A. MPLS-TP is a newer packet transport technology that replaces SONET/SDH.
B. MPLS-TP includes extensions to native MPLS OAM for fault detection, monitoring, and propagation.
C. MPLS-TP requires a routing protocol.
D. MPLS-TP uses an IANA assigned label 13 for OAM.
E. MPLS-TP uses Ethernet Y.1731 OAM.
Answer: ABD
Q137. A network administrator is in charge of multiple IPsec VPN headend devices that service thousands of remote connectivity, point-to-point, IPsec/GRE tunnels. During a recent power outage, in which it was found that a backup power supply in one of those headend devices was faulty, one of the headend routers suffered a complete shutdown event. When the router was successfully recovered, remote users found intermittent connectivity issues that went away after several hours. Network operations staff accessed the headend devices and found that the recently recovered unit was near 100% CPU for a long period of time. How would you redesign the network VPN headend devices to prevent this from happening again in the future?
A. Move the tunnels more evenly across the headend devices.
B. Implement Call Admission Control.
C. Use the scheduler allocate command to curb CPU usage.
D. Change the tunnels to DMVPN.
Answer: B
Q138. Currently a service provider provides IPv4 traceroute services between MPLS PE routers. The provider wants to implement IPv6 with MPLS 6PE/6VPE and then provide parallel IPv6 traceroute services between MPLS PE routers. Which two design solutions provide this service? (Choose two.)
A. The P routers must support ICMPv6.
B. The PE routers must support ICMPv6.
C. The P routers must support full IPv6.
D. The PE routers must support full IPv6.
Answer: BD
Q139. Your organization is working on a design solution for a new Internet-based remote access virtual private network that has 1000 remote sites. A network administrator recommends GETVPN as the model because the network of today uses DMVPN, which results in a lot of background NHRP control traffic. What is a potential problem with using GETVPN for this design solution?
A. GETVPN would require a high level of background traffic to maintain its IPsec SAs.
B. GETVPN is not scalable to a large number of remote sites.
C. GETVPN and DMVPN will not interoperate.
D. GETVPN key servers would be on public, hacker-reachable space and need higher security.
Answer: D
Q140. When designing a WAN that will be carrying real-time traffic, what are two important reasons to consider serialization delay? (Choose two.)
A. Serialization delays are variable because they depend on the line rate of the interface and on the type of the packet being serialized.
B. Serialization delay depends not only on the line rate of the interface but also on the size of the packet.
C. Serialization delays are invariable because they depend only on the line rate of the interface.
D. Serialization delays are variable because they depend only on the size of the packet being serialized.
E. Serialization delay is the time required to transmit the packet on the physical media.
Answer: BE