单选题As an experienced Network Engineer, you are required to characterize an existing CIS network. In such a situation, what is the last step to take?（）A Perform a network audit.B Form an impression about the network.C Use traffic analysis to augment organi

第1题：

第2题：

HSRP. Known as Hot Stanclby Router Protocol, is a Cisco proprietarv redundancy protocol . As an experienced network administrator, you are required to configure HSRP on a XYZ network. Which TWO of the following wii be available and shared between the routers configured with HSRP? （）(Choose two.)

• A、a shared single interface
• B、the ability to track serial interfaces
• C、UDP-based hello packets
• D、the impact of flapping links if timers are too low

第3题：

第4题：

As an experienced Network Engineer, you are required to characterize an existing CIS network. In such a situation, what is the last step to take?（）

• A、Perform a network audit.
• B、Form an impression about the network.
• C、Use traffic analysis to augment organizational input.
• D、Prepare and add to the network description.

第5题：

You work as a network engineer for the company， you want to configure two BGP speakers to form an EBGP session across a firewall. On the engineer’s network， the firewall always permits TCP sessions that are initiated from the inside network （the network attached to the inside interface of the firewall）. What prerequisite is there for enabling BGP to run on this network？（）

• A、EBGP multihop will need to be configured for this to work.
• B、This should work with normal BGP peering， with no additional configuration on the BGP speakers or the firewall.
• C、The BGP protocol port must be opened on the firewall
• D、There is no way to make BGP work across a firewall.

第6题：

When implementing MPLS VPNs between CE and PE routers, which of these statements is correct? As a Network Engineer, it is necessary for you to know how to implement MPLS VPNs between Customer Edge and Provider Edge routers. Refer to the following descriptions, which one is making sense?（）

• A、If using OSPF or EIGRP as the PE-CE routing protocol, redistribution is not required, but any other protocol or static route will require redistribution
• B、If using IS-IS as the PE-CE routing protocol, no redistribution is required
• C、If using static routes between the CE and PE routers, no redistribution of other VPN routes is required
• D、If PE-CE protocol is not BGP, redistribution of other VPN routes from MP-BGP is required

第7题：

As an experienced network engineer, you are asked to troubleshoot a CIS network outage. During the troubleshooting process, you notice that one of your colleagues connects additional devices to the network with the use of his own switch. With the purpose of improving speed, the switch is attached to both network ports in an office, which leads to bridge loop. Enabling which of the following feature will be able to prevent this problem from happening again?（）

• A、GLBP
• B、RSTP
• C、BPDU guard
• D、root guard

第8题：

第9题：

As an experienced Network Engineer, you are required to implement the security architecture assessment. Which of the following statement describes the most important reason for that?（）

• A、Create a design specification document.
• B、Integrate routing and switching components.
• C、Document power and UPS availability
• D、Document the customer's current and future technology projects.

第10题：

As an experienced Network Engineer, you are responsible for network connectivity and system configuration. Which of the following protocols will be supported by Cisco Nonstop Forwarding (NSF)?（）

• A、ISSU，OSPF，IS-IS
• B、IETF，OSPF，ISSU
• C、IS-IS，EIGRP，SSO，BGP
• D、EIGRP，BGP，OSPF，IS-IS