The Bryant Advantage Bulldog Blog

Here are the answers to yesterday's Cisco practice questions. New questions later tonight! CCNA: By default, what traffic is considered "interesting" by a Cisco router? A. All IP traffic B. All ICMP traffic C. All traffic D. No traffic E. Traffic defined with the dialer-group command F. Traffic defined with the dialer-list command Answer: D. By default, no traffic is considered interesting. CCNP / BSCI: Which of the following protocols will not advertise a redistributed route unless a seed metric is expressly assigned during redistribution? Choose all that apply. A. RIPv1 B. RIPv2 C. OSPF D. EIGRP E. ISIS F. IGRP Answer: A, B, E, F. Both versions of RIP require this seed metric to be set, along with IGRP and EIGRP. CCNP / BCMSN: What command enables VRRP interface tracking? A. (config-if)# vrrp tracking B. (config)# vrrp tracking C. (config-if)# standby 5 track serial0 D. (config) # standby 5 track serial0 E. VRRP doesn't have interface tracking capabilities. Answer: ...

Passing the BSCI exam and earning your CCNP is all about knowing the details, and when it comes to EIGRP SIA routes, there are plenty of details to know. A quick check in a search engine for "troubleshoot SIA" will bring up quite a few matches. Troubleshooting SIA routes is very challenging in that there's no one reason they occur. View the EIGRP topology table with the show ip eigrp topology command, and you'll see a code next to every successor and feasible successor. A popular misconception is that we want these routes to have an "A" next to them - so they're active. That's what we want, right? Active routes sound good, right? Well, they sound good, but they're not. If a route shows as Active in the EIGRP topology table, that means that DUAL is currently calculating that route, and it's currently unusable. When a route is Passive ("P), that means it's not being recalculated and it's a usable route. Generally, a route shown as ...

Getting Started With Hot Standby Routing Protocol (HSRP) A CCNP / BCMSN Exam Tutorial Defined in RFC 2281, HSRP is a Cisco-proprietary protocol in which routers are put into an HSRP router group. Along with dynamic routing protocols and STP, HSRP is considered a high-availability network service, since all three have an almost immediate cutover to a secondary path when the primary path is unavailable. One of the routers will be selected as the primary ("Active", in HSRP terminology), and that primary will handle the routing while the other routers are in standby, ready to handle the load if the primary router becomes unavailable. In this fashion, HSRP ensures a high network uptime, since it routes IP traffic without relying on a single router. The hosts using HSRP as a gateway don't know the actual IP or MAC addresses of the routers in the group. They're communicating with a pseudorouter, a "virtual router" created by the HSRP configuration. This virtual rou...

To pass the CCNA exam, you have to be able to write and troubleshoot access lists. As you climb the ladder toward the CCNP and CCIE, you'll see more and more uses for ACLs. Therefore, you had better know the basics! The use of "host" and "any" confuses some newcomers to ACLs, so let's take a look at that first. It is acceptable to configure a wildcard mask of all ones or all zeroes. A wildcard mask of 0.0.0.0 means the address specified in the ACL line must be matched exactly a wildcard mask of 255.255.255.255 means that all addresses will match the line. Wildcard masks have the option of using the word host to represent a wildcard mask of 0.0.0.0. Consider a configuration where only packets from IP source 10.1.1.1 should be allowed and all other packets denied. The following ACLs both do that. R3#conf t R3(config)#access-list 6 permit 10.1.1.1 0.0.0.0 R3(config)#conf t R3(config)#access-list 7 permit host 10.1.1.1 The keyword any can be used to represent a ...

Here are some CCNA and CCNP practice questions to get your Saturday started off right. Look for new articles and tutorials later today! CCNA: By default, what traffic is considered "interesting" by a Cisco router? A. All IP traffic B. All ICMP traffic C. All traffic D. No traffic E. Traffic defined with the dialer-group command F. Traffic defined with the dialer-list command CCNP / BSCI: Which of the following protocols will not advertise a redistributed route unless a seed metric is expressly assigned during redistribution? Choose all that apply. A. RIPv1 B. RIPv2 C. OSPF D. EIGRP E. ISIS F. IGRP CCNP / BCMSN: What command enabled VRRP interface tracking? A. (config-if)# vrrp tracking B. (config)# vrrp tracking C. (config-if)# standby 5 track serial0 D. (config) # standby 5 track serial0 E. VRRP doesn't have interface tracking capabilities. See you later today! Chris Bryant CCIE #12933 www.thebryantadvantage.com

Here are the answers to Thursday's CCNA / CCNP practice questions. I'll have some more questions for you later tonight! Thursday's CCNA And CCNP Practice Questions CCNA: Which of the following devices divides a single broadcast domain into smaller broadcast domains with no additional configuration? Choose all that apply. A. Hubs B. Repeaters C. Switches D. Routers Answer: D. Only routers do this by default. Switches can divide a broadcast domain, but only with additional configuration (VLANs). Hubs and repeaters work at Layer 1 and are incapable of dividing broadcast domains. CCNP / BSCI: In ISIS terminology, what is an intermediate system? A. An end host B. A switch C. A logical group of routers D. A single router E. A logical group of hosts Answer: D. An intermediate system is a single router in ISIS. CCNP / BCMSN: The command show standby is used to verify the configuration of what protocol? A. IRDP B. HSRP C. VRRP D. GLBP Answer: B. show standby is the "show ip p...

Thursday's CCNA And CCNP Practice Questions CCNA: Which of the following devices divides a single broadcast domain into smaller broadcast domains with no additional configuration? Choose all that apply. A. Hubs B. Repeaters C. Switches D. Routers CCNP / BSCI: In ISIS terminology, what is an intermediate system? A. An end host B. A switch C. A logical group of routers D. A single router E. A logical group of hosts CCNP / BCMSN: The command show standby is used to verify the configuration of what protocol? A. IRDP B. HSRP C. VRRP D. GLBP Answers tomorrow - see you then! Chris Bryant CCIE #12933 www.thebryantadvantage.com