CISCO CCNA ENSA 3

Which statement describes a VPN?

In which OSPF state is the DR/BDR election conducted?

Two corporations have just completed a merger. The network engineer has been asked to connect the two corporate networks without the expense of leased lines. Which solution would be the most cost effective method of providing a proper and secure connection between the two corporate networks?

What is the final operational state that will form between an OSPF DR and a DROTHER once the routers reach convergence?

Refer to the exhibit. If the switch reboots and all routers have to re-establish OSPF adjacencies, which routers will become the new DR and BDR?

Which type of server would be used to keep a historical record of messages from monitored network devices?

When QoS is implemented in a converged network, which two factors can be controlled to improve network performance for real-time traffic? (Choose two.)

In which step of gathering symptoms does the network engineer determine if the problem is at the core, distribution, or access layer of the network?

What protocol sends periodic advertisements between connected Cisco devices in order to learn device name, IOS version, and the number and type of interfaces?

An administrator is configuring single-area OSPF on a router. One of the networks that must be advertised is 192.168.0.0 255.255.252.0. What wildcard mask would the administrator use in the OSPF network statement?

Refer to the exhibit. An administrator configures the following ACL in order to prevent devices on the 192.168.1.0 subnet from accessing the server at 10.1.1.5:

access-list 100 deny ip 192.168.1.0 0.0.0.255 host 10.1.1.5 access-list 100 permit ip any any

Where should the administrator place this ACL for the most efficient use of network resources?

Which type of OSPFv2 packet is used to forward OSPF link change information?

What protocol synchronizes with a private master clock or with a publicly available server on the internet?

Which type of VPN allows multicast and broadcast traffic over a secure site-to-site VPN?

An OSPF router has three directly connected networks; 10.0.0.0/16, 10.1.0.0/16, and 10.2.0.0/16. Which OSPF network command would advertise only the 10.1.0.0 network to neighbors?

Refer to the exhibit. Which sequence of commands should be used to configure router A for OSPF?

An administrator is configuring single-area OSPF on a router. One of the networks that must be advertised is 192.168.0.0 255.255.254.0. What wildcard mask would the administrator use in the OSPF network statement?

How does virtualization help with disaster recovery within a data center?

How does virtualization help with disaster recovery within a data center?

Refer to the exhibit. Which devices exist in the failure domain when switch S3 loses power?

Which two things should a network administrator modify on a router to perform password recovery? (Choose two.)

What type of network uses one common infrastructure to carry voice, data, and video signals?

What are three advantages of using private IP addresses and NAT? (Choose three.)

Which two scenarios are examples of remote access VPNs? (Choose two.)

What are three benefits of cloud computing? (Choose three.)

What is a characteristic of a single-area OSPF network?

What is a WAN?

A network administrator has been tasked with creating a disaster recovery plan. As part of this plan, the administrator is looking for a backup site for all of the data on the company servers. What service or technology would support this requirement?

Which type of OSPF packet is used by a router to discover neighbor routers and establish neighbor adjacency?

Which two statements are characteristics of a virus? (Choose two.)

Which public WAN access technology utilizes copper telephone lines to provide access to subscribers that are multiplexed into a single T3 link connection?

A customer needs a metropolitan area WAN connection that provides high-speed, dedicated bandwidth between two sites. Which type of WAN connection would best fulfill this need?

A company has contracted with a network security firm to help identify the vulnerabilities of the corporate network. The firm sends a team to perform penetration tests to the company network. Why would the team use debuggers?

Consider the following output for an ACL that has been applied to a router via the access-class in command. What can a network administrator determine from the output that is shown?

R1# Standard IP access list 2

10 permit 192.168.10.0, wildcard bits 0.0.0.255 (2 matches)

20 deny any (1 match)

What command would be used as part of configuring NAT or PAT to clear dynamic entries before the timeout has expired?

What are two characteristics of video traffic? (Choose two.)

Refer to the exhibit. A technician is configuring R2 for static NAT to allow the client to access the web server. What is a possible reason that the client PC cannot access the web server?

In setting up a small office network, the network administrator decides to assign private IP addresses dynamically to workstations and mobile devices. Which feature must be enabled on the company router in order for office devices to access the internet?

A data center has recently updated a physical server to host multiple operating systems on a single CPU. The data center can now provide each customer with a separate web server without having to allocate an actual discrete server for each customer. What is the networking trend that is being implemented by the data center in this situation?