Proper study guides for Down to date Cisco CCNA Cisco Certified Network Associate CCNA (v3.0) certified begins with Cisco 200 125 ccna pdf preparation products which designed to deliver the 100% Guarantee 200 125 ccna book questions by making you pass the ccna 200 125 study guide test at your first time. Try the free ccna 200 125 torrent demo right now.
2026 New 200-125 Exam Dumps with PDF and VCE Free: https://www.2passeasy.com/dumps/200-125/
Q1. - (Topic 5)
Which statement describes the process of dynamically assigning IP addresses by the DHCP server?
A. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
B. Addresses are permanently assigned so that the hosts uses the same address at all times.
C. Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made.
D. Addresses are leased to hosts, which periodically contact the DHCP server to renew the lease.
Answer: D
Explanation:
The DHCP lifecycle consists of the following:
✑ Allocation: A client begins with no active lease, and hence, no DHCP-assigned address. It acquires a lease through a process of allocation.
✑ Reallocation: If a client already has an address from an existing lease, then when it reboots or starts up after being shut down, it will contact the DHCP server that granted it the lease to confirm the lease and acquire operating parameters. This is sometimes called reallocation; it is similar to the full allocation process but shorter.
✑ Normal Operation: Once a lease is active, the client functions normally, using its assigned IP address and other parameters during the “main part” of the lease. The client is said to be bound to the lease and the address.
✑ Renewal: After a certain portion of the lease time has expired, the client will attempt to contact the server that initially granted the lease, to renew the lease so it can keep using its IP address.
✑ Rebinding. If renewal with the original leasing server fails (because, for example, the server has been taken offline), then the client will try to rebind to any active DHCP server, trying to extend its current lease with any server that will allow it to do so.
✑ Release: The client may decide at any time that it no longer wishes to use the IP address it was assigned, and may terminate the lease, releasing the IP address.
Q2. - (Topic 8)
Refer to the exhibit.
While troubleshooting a switch, you executed the show interface port-channel 1 etherchannel command and it returned this output. Which information is provided by the Load value?
A. the percentage of use of the link
B. the preference of the link
C. the session count of the link
D. the number source-destination pairs on the link
Answer: D
Q3. - (Topic 4)
Refer to the exhibit.
Which statement describes DLCI 17?
A. DLCI 17 describes the ISDN circuit between R2 and R3.
B. DLCI 17 describes a PVC on R2. It cannot be used on R3 or R1.
C. DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3.
D. DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider.
Answer: C
Explanation:
DLCI-Data Link Connection Identifier Bits: The DLCI serves to identify the virtual connection so that the receiving end knows which information connection a frame belongs to. Note that this DLCI has only local significance. Frame Relay is strictly a Layer 2 protocol suite.
Q4. DRAG DROP - (Topic 3)
Drag the Cisco default administrative distance to the appropriate routing protocol or route. (Not all options are used.)
Answer:
Q5. - (Topic 5)
Which two statements about static NAT translations are true? (Choose two.)
A. They allow connections to be initiated from the outside.
B. They require no inside or outside interface markings because addresses are statically defined.
C. They are always present in the NAT table.
D. They can be configured with access lists, to allow two or more connections to be initiated from the outside.
Answer: A,C
Explanation:
Static NAT is to map a single outside IP address to a single inside IP address. This is typically done to allow incoming connections from the outside (Internet) to the inside. Since these are static, they are always present in the NAT table even if they are not actively in use.
Q6. - (Topic 4)
The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command?
A. This command should be executed from the global configuration mode.
B. The IP address 10.121.16.8 is the local router port used to forward data.
C. 102 is the remote DLCI that will receive the information.
D. This command is required for all Frame Relay configurations.
E. The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC.
Answer: E
Explanation:
Broadcast is added to the configurations of the frame relay, so the PVC supports broadcast, allowing the routing protocol updates that use the broadcast update mechanism to be forwarded across itself.
Q7. - (Topic 5)
Refer to the exhibit.
What is the cause of the Syslog output messages?
A. The EIGRP neighbor on Fa0/1 went down due to a failed link.
B. The EIGRP neighbor connected to Fa0/1 is participating in a different EIGRP process, causing the adjacency to go down.
C. A shut command was executed on interface Fa0/1, causing the EIGRP adjacency to go down.
D. Interface Fa0/1 has become error disabled, causing the EIGRP adjacency to go down.
Answer: C
Explanation:
The first lines of the message show that a configuration change was made, and that the fa0/1 interface changed to a state of administratively down. This can only be done by issuing the shutdown command. The last line indicates that this caused an EIGRP neighbor adjacency to go down.
Q8. - (Topic 8)
How does NAT overloading provide one-to-many address transalation?
A. it uses a pool of addresses.
B. it converts IPv4 addresses to unused IPv6 addresses.
C. it assigns a unique TCP/UDP port to each session.
D. it uses virtual MAC address and virtual IP addresses.
Answer: C
Q9. - (Topic 5)
What authentication type is used by SNMPv2?
A. HMAC-MD5
B. HMAC-SHA
C. CBC-DES
D. community strings
Answer: D
Explanation:
SNMP Versions
Cisco IOS software supports the following versions of SNMP:
•SNMPv1 — The Simple Network Management Protocol: A Full Internet Standard, defined in RFC 1157. (RFC 1157 replaces the earlier versions that were published as RFC 1067 and RFC 1098.) Security is based on community strings.
•SNMPv2c — The community-string based Administrative Framework for SNMPv2. SNMPv2c (the "c" stands for "community") is an Experimental Internet Protocol defined in RFC 1901, RFC 1905, and RFC 1906. SNMPv2c is an update of the protocol operations and data types of SNMPv2p (SNMPv2 Classic), and uses the community-based security model of SNMPv1.
•SNMPv3 — Version 3 of SNMP. SNMPv3 is an interoperable standards-based protocol defined in RFCs 2273 to 2275. SNMPv3 provides secure access to devices by a combination of authenticating and encrypting packets over the network.
SNMP Security Models and Levels
Model Level
Authentication Encryption What Happens v1 noAuthNoPriv
Community String No
Uses a community string match for authentication. v2c
noAuthNoPriv Community String No
Uses a community string match for authentication. v3
noAuthNoPriv Username
No
Uses a username match for authentication. v3
authNoPriv MD5 or SHA
No
Provides authentication based on the HMAC-MD5 or HMAC-SHA algorithms. v3
authPriv MD5 or SHA DES
Provides authentication based on the HMAC-MD5 or HMAC-SHA algorithms. Provides DES 56-bit encryption in addition to authentication based on the CBC-DES (DES-56) standard.
Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_2/configfun/configuration/guide/ffun_c/fcf014.h tml
Q10. - (Topic 3)
What are two enhancements that OSPFv3 supports over OSPFv2? (Choose two.)
A. It requires the use of ARP.
B. It can support multiple IPv6 subnets on a single link.
C. It supports up to 2 instances of OSPFv3 over a common link.
D. It routes over links rather than over networks.
Answer: B,D
Explanation:
Here is a list of the differences between OSPFv2 and OSPFv3:
✑ They use different address families (OSPFv2 is for IPv4-only, OSPFv3 can be used for IPv6-only or both protocols
✑ OSPFv3 introduces new LSA types
✑ OSPFv3 has different packet format
✑ OSPFv3 uses different flooding scope bits (U/S2/S1)
✑ OSPFv3 adjacencies are formed over link-local IPv6 communications
✑ OSPFv3 runs per-link rather than per-subnet
✑ OSPFv3 supports multiple instances on a single link, Interfaces can have multiple IPv6 addresses
✑ OSPFv3 uses multicast addresses FF02::5 (all OSPF routers), FF02::6 (all OSPF DRs)
✑ OSPFv3 Neighbor Authentication done with IPsec (AH)
✑ OSPFv2 Router ID (RID) must be manually configured, still a 32-bit number
Reference: http://www.networkworld.com/article/2225270/cisco-subnet/ospfv3-for-ipv4-and- ipv6.html