| Exam Code | 640-875 |
| Exam Name | Building Cisco Service Provider Next-Generation Networks, Part 1 (SPNGN1) |
| Questions | 219 Questions Answers With Explanation |
| Update Date | November 08,2024 |
| Price |
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An engineer must physically interconnect a pair of P routers by using 40 G optical interfaces. Both routers are installed in different racks at the same data center. What is the maximum distance that an OM3 multimode optical fiber link can be used for this interconnection?
A. 100 mB. 10 km
B. 7 m
C. 3 m
You plan to implement QoS on a network, using these four classes:A class for real-time applications A class for interactive applications A class for batch applications A scavenger class Which two classes are interactive applications? (Choose two.)
A. email
B. SSH
C. database updates
D. IP telephony
E. file transfers
Refer to the exhibit. Users in VLAN 10 report that their computers have 169.254.0.0/16 IP addresses. On the DHCP server, you discover that the 192.168.10.0/24 IP address pool and the 192.168.20.0/24 IP address pool are configured. What can you do to ensure that the users receive valid IP addresses from the DHCP server?
A. On FastEthernet0/0, configure ip helper-address 192.168.20.10
B. Globally configure ip dhcp-server 192.168.20.10. On FastEthernet0/0 and FastEthernet0/1, configure ip
dhcp-relay enable
C. Globally configure ip dhcp-server 192.168.20.10. On FastEthernet0/0, configure ip dhcp-relay enable
D. On Fast-Ethernet0/0, configure ip dhcp-relay 192.168.20.10.
An engineer must ensure that the maximum number of static IPv4 routes that can be configured is 5000 on a Cisco IOS XR Router. Which command must be used to accomplish this task?
A. RP/0/RP/1/CPU0:router(config-if)#maximum path ipv4 5000
B. RP/0/RP/1/CPU0:router(config-router)#maximum path ipv4 5000
C. RP/0/RP/1/CPU0:router(config-rpl)#maximum path ipv4 5000
D. RP/0/RP/1/CPU0:router(config-static)#maximum path ipv4 5000
Which two statements regarding router ACLs are true? (Choose two.)
A. They can restrict and block unwanted access to Cisco IOS services
B. They have no effect on router resources
C. They can be defined as standard, extended, or optional access lists
D. They can protect the router processor from unnecessary traffic, to maintain performance
E. They cannot be used to prevent DoS attacks
Which three Cisco platforms support IPoDWDM? (Choose three.)
A. Cisco ASR 1000 Series
B. Cisco ASR 9000 Series
C. Cisco CRS-1
D. Cisco ISR G2 Series
E. Cisco 7600 Series
F. Cisco 2900 Series
Which statement about 10/40/100 GigabitEthernet interface configuration on Cisco IOS XR is true?
A. Use the negotiation auto command in interface configuration mode to enable link auto-negotiation to
ensure that devices that share a link segment are automatically configured with the highest performance.
B. The configuration supports only full-duplex operation.
C. The range for MTU values is 64 bytes to 1518 bytes on the interface.
D. The interface has no flow control configuration.
Which two statement about A records and AAAA records in DNS are true? (Choose two.)
A. A records can be returned in IPv6 packets only
B. AAAA records can be returned in IPv6 packets only
C. AAAA records can be returned in either IPv4 packets or IPv6 packets
D. A records can be returned in either IPv4 packets or IPv6 packets
E. A records and AAAA records can be used interchangeable
Which type of IPv6 address does the ff00::/8 prefix denote?
A. Local loopback
B. Global unicast
C. Unique link local
D. Link local unicast
E. Multicast
F. Anycast
Which two components are used when creating an endpoint’s modified EUI-64 format IPv6 address? (Choose two.)
A. hexadecimal value of 0xFFFE
B. 48-bit MAC address
C. 64-bit MAC address
D. Link local suffix
E. IPv4 address
