200-125 Exam
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Q1. - (Topic 8)
Which NAT function can map multiple inside addresses to a single outside address?
A. PAT
B. SFTP
C. RARP
D. ARP
E. TFTP
Answer: A
Q2. - (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
Q3. - (Topic 8)
Which feature can you implement to reserve bandwidth for VoIP calls across the call path?
A. PQ
B. CBWFQ
C. round robin
D. RSVP
Answer: D
Q4. DRAG DROP - (Topic 6)
Drag the security features on the left to the specific security risks they help protect against on the right. (Not all options are used.)
Answer:
Q5. - (Topic 5)
Refer to the diagram.
All hosts have connectivity with one another. Which statements describe the addressing scheme that is in use in the network? (Choose three.)
A. The subnet mask in use is 255.255.255.192.
B. The subnet mask in use is 255.255.255.128.
C. The IP address 172.16.1.25 can be assigned to hosts in VLAN1
D. The IP address 172.16.1.205 can be assigned to hosts in VLAN1
E. The LAN interface of the router is configured with one IP address.
F. The LAN interface of the router is configured with multiple IP addresses.
Answer: B,C,F
Explanation:
The subnet mask in use is 255.255.255.128: This is subnet mask will support up to 126 hosts, which is needed.
The IP address 172.16.1.25 can be assigned to hosts in VLAN1: The usable host range in this subnet is 172.16.1.1-172.16.1.126
The LAN interface of the router is configured with multiple IP addresses: The router will need 2 subinterfaces for the single physical interface, one with an IP address that belongs in each VLAN.
Q6. - (Topic 4)
Which two options are valid WAN connectivity methods? (Choose two.)
A. PPP
B. WAP
C. DSL
D. L2TPv3
E. Ethernet
Answer: A,C
Explanation:
The Point-to-Point Protocol (PPP) provides a standard method for transporting multi- protocol datagrams over point-to-point links. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers. It is a data link layer protocol used for WAN connections.
DSL is also considered a WAN connection, as it can be used to connect networks, typically when used with VPN technology.
Q7. DRAG DROP - (Topic 4)
Drag the Frame Relay acronym on the left to match its definition on the right. (Not all acronyms are used.)
Answer:
Q8. - (Topic 8)
What is the first step in the NAT configuration process?
A. Define inside and outside interfaces.
B. Define public and private IP addresses.
C. Define IP address pools.
D. Define global and local interfaces.
Answer: A
Q9. - (Topic 5)
What is the first 24 bits in a MAC address called?
A. NIC
B. BIA
C. OUI
D. VAI
Answer: C
Explanation:
An Organizationally Unique Identifier (OUI) is a 24-bit number that uniquely identifies a vendor, manufacturer, or other organization globally or worldwide.
They are used as the first 24 nits of the MAC address to uniquely identify a particular piece of equipment.
Q10. - (Topic 5)
Which three statements about Syslog utilization are true? (Choose three.)
A. Utilizing Syslog improves network performance.
B. The Syslog server automatically notifies the network administrator of network problems.
C. A Syslog server provides the storage space necessary to store log files without using router disk space.
D. There are more Syslog messages available within Cisco IOS than there are comparable SNMP trap messages.
E. Enabling Syslog on a router automatically enables NTP for accurate time stamping.
F. A Syslog server helps in aggregation of logs and alerts.
Answer: C,D,F
Explanation:
The Syslog sender sends a small (less than 1KB) text message to the Syslog receiver. The Syslog receiver is commonly called "syslogd," "Syslog daemon," or "Syslog server." Syslog messages can be sent via UDP (port 514) and/or TCP (typically, port 5000). While there are some exceptions, such as SSL wrappers, this data is typically sent in clear text over the network. A Syslog server provides the storage space necessary to store log files without using router disk space.
In general, there are significantly more Syslog messages available within IOS as compared to SNMP Trap messages. For example, a Cisco Catalyst 6500 switch running Cisco IOS Software Release 12.2(18)SXF contains about 90 SNMP trap notification messages, but has more than 6000 Syslog event messages.
System logging is a method of collecting messages from devices to a server running a syslog daemon. Logging to a central syslog server helps in aggregation of logs and alerts. Cisco devices can send their log messages to a UNIX-style syslog service. A syslog service accepts messages and stores them in files, or prints them according to a simple configuration file.
Reference: http://www.cisco.com/c/en/us/products/collateral/services/high-availability/white_paper_c11-557812.html