EnsurepassQUESTION 271 Refer to exhibit. A network administrator cannot establish a Telnet session with the indicated router. What is the cause of this failure?     A. A Level 5 password is not set. B. An ACL is blocking Telnet access. C. The vty password is missing. D. The console password is missing.   Correct Answer: C Explanation: The login keyword has been set, but not password. This will result in the "password required, but none set" message to users trying to Read more [...]
EnsurepassQUESTION 261 Refer to the exhibit. An attempt to deny web access to a subnet blocks all traffic from the subnet. Which interface command immediately removes the effect of ACL 102?     A. no ip access-class 102 in B. no ip access-class 102 out C. no ip access-group 102 in D. no ip access-group 102 out E. no ip acces s-list 102 in   Correct Answer: D Explanation: The "ip access-group" is used to apply and ACL to an interface. From the output shown, we know Read more [...]
EnsurepassQUESTION 251 Which three features are added in SNMPv3 over SNMPv2?   A. Message Integrity B. Compression C. Authentication D. Encryption E. Error Detection   Correct Answer: ACD Explanati on: 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 Read more [...]
EnsurepassQUESTION 241 Refer to the exhibit. The Bigtime router is unable to authenticate to the Littletime router. What is the cause of the problem?     A. The usernames are incorrectly configured on the two routers. B. The passwords do not match on the two routers. C. CHAP authentication cannot be used on a serial interface. D. The routers cannot be connected from interface S0/0 to interface S0/0. E. With CHAP authentication, one router must authenticate to another router. Read more [...]
EnsurepassQUESTION 231 What levels will be trapped if the administrator executes the command   router(config)# logging trap 4 (Choose four)   A. Emergency B. Notice C. Alert D. Error E. Warning   Correct Answer: ACDE Explanation: The Message Logging is divided into 8 levels as listed below:   Level Keyword Description 0 emergencies System is unusable 1 alerts Immediate action is needed 2 critical Critical conditions exist 3 errors Error conditions exist 4 warnings Read more [...]
EnsurepassQUESTION 221 You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the maximum number of subnets. Which network address and subnet mask meet this requirement?   A. B. C. D. E.   Correct Answer: B Explanation: A subnet mask of Read more [...]
EnsurepassQUESTION 211 Which two of these statements are true of IPv6 address representation? (Choose two.)   A. There are four types of IPv6 addresses: unicast, multicast, anycast, and broadcast. B. A single interface may be assigned multiple IPv6 addresses of any type. C. Every IPv6 interface contains at least one loopback address. D. The first 64 bits represent the dynamically created interface ID. E. Leading zeros in an IPv6 16 bit hexadecimal field are mandatory.   Read more [...]
EnsurepassQUESTION 201 Which of these represents an IPv6 link-local address?   A. FE80::380e:611a:e14f:3d69 B. FE81::280f:512b:e14f:3d69 C. FEFE:0345:5f1b::e14d:3d69 D. FE08::280e:611:a:f14f:3d69   Correct Answer: A Explanation: In the Internet Protocol Version 6 (IPv6), the address block fe80::/10 has been reserved for link-local unicast addressing. The actual link local addresses are assigned with the prefix fe80::/64. They may be assigned by automatic (stateless) or stateful Read more [...]
EnsurepassQUESTION 191 What will happen if a private IP address is assigned to a public interface connected to an ISP?   A. Addresses in a private range will not be routed on the Internet backbone. B. Only the ISP router will have the capability to access the public network. C. The NAT process will be used to translate this address to a valid IP address. D. A conflict of IP addresses happens, because other public routers can use the same range.   Correct Answer: A Explanation: Read more [...]
EnsurepassQUESTION 181 What is the purpose of Inverse ARP?   A. to map a known IP address to a MAC address B. to map a known DLCI to a MAC address C. to map a known MAC address to an IP address D. to map a known DLCI to an IP address E. to map a known IP address to a SPID F. to map a known SPID to a MAC address   Correct Answer: D Explanation: Dynamic address mapping relies on the Frame Relay Inverse Address Resolution Protocol (Inverse ARP), defined by RFC 1293, to Read more [...]