Enterprise Networking, Security, and Automation

to reverse engineer binary files when writing exploits and when analyzing malware

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? to detect installed tools within files and directories that provide threat actors remote access and control over a computer or network to reverse engineer binary files when writing exploits and when analyzing malware to obtain specially designed operating systems preloaded with tools optimized for hacking to detect any evidence of a hack or malware in a computer or network

leased line Ethernet WAN

A company is considering updating the campus WAN connection. Which two WAN options are examples of the private WAN architecture? (Choose two.) leased line cable digital subscriber line Ethernet WAN municipal Wi-Fi

Ethernet WAN

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? packet-switched network Ethernet WAN circuit-switched network MPLS

virtualization

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? online collaboration BYOD virtualization maintaining communication integrity

data center

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? data center virtualization dedicated servers software defined networking

Two devices were able to use SSH or Telnet to gain access to the router.

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? Two devices connected to the router have IP addresses of 192.168.10. x . Two devices were able to use SSH or Telnet to gain access to the router. Traffic from one device was not allowed to come into one router port and be routed outbound a different router port. Traffic from two devices was allowed to enter one router port and be routed outbound to a different router port.

The host initiates a clientless VPN connection using a compliant web browser to download the client.

If an outside host does not have the Cisco AnyConnect client preinstalled, how would the host gain access to the client image? The Cisco AnyConnect client is installed by default on most major operating systems. The host initiates a clientless VPN connection using a compliant web browser to download the client. The host initiates a clientless connection to a TFTP server to download the client. The host initiates a clientless connection to an FTP server to download the client.

NAT

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? UPnP MAC filtering NAT QoS

Interface S0/0/0 should be identified as the outside NAT interface.

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? The IP NAT statement is incorrect. Interface Fa0/1 should be identified as the outside NAT interface. Interface S0/0/0 should be identified as the outside NAT interface. The configuration is missing a valid access control list.

209.165.20.25

Refer to the exhibit. Which address or addresses represent the inside global address? 192.168.0.100 10.1.1.2 any address in the 10.1.1.0 network 209.165.20.25

hides private LAN addressing from outside devices that are connected to the Internet permits LAN expansion without additional public IP addresses conserves registered public IP addresses

What are three advantages of using private IP addresses and NAT? (Choose three.) hides private LAN addressing from outside devices that are connected to the Internet permits LAN expansion without additional public IP addresses reduces CPU usage on customer routers creates multiple public IP addresses improves the performance of the router that is connected to the Internet conserves registered public IP addresses

It streamlines the IT operations of an organization by subscribing only to needed services. It enables access to organizational data anywhere and at any time. It eliminates or reduces the need for onsite IT equipment, maintenance, and management.

What are three benefits of cloud computing? (Choose three.) It utilizes end-user clients to do a substantial amount of data preprocessing and storage. It uses open-source software for distributed processing of large datasets. It streamlines the IT operations of an organization by subscribing only to needed services. It enables access to organizational data anywhere and at any time. It turns raw data into meaningful information by discovering patterns and relationships. It eliminates or reduces the need for onsite IT equipment, maintenance, and management.

Video traffic latency should not exceed 400 ms. Video traffic is unpredictable and inconsistent

What are two characteristics of video traffic? (Choose two.) Video traffic consumes less network resources than voice traffic consumes. Video traffic latency should not exceed 400 ms. Video traffic is more resilient to loss than voice traffic is. Video traffic requires a minimum of 30 kbs of bandwidth. Video traffic is unpredictable and inconsistent.

clear ip nat translation

What command would be used as part of configuring NAT or PAT to clear dynamic entries before the timeout has expired? clear ip dhcp clear ip nat translation clear access-list counters clear ip pat statistics

a network infrastructure that provides access to other networks over a large geographic area

What is a WAN? a network infrastructure that spans a limited physical area such as a city a network infrastructure that provides access to other networks over a large geographic area a network infrastructure that provides access in a small geographic area a network infrastructure designed to provide data storage, retrieval, and replication

All routers are in the backbone area.

What is a characteristic of a single-area OSPF network? All routers share a common forwarding database. All routers have the same neighbor table. All routers are in the backbone area. All routers have the same routing table.

converged

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

the use of the building switch block approach

Which design feature will limit the size of a failure domain in an enterprise network? the purchase of enterprise equipment that is designed for large traffic volume the installation of redundant power supplies the use of a collapsed core design the use of the building switch block approach

DSL

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

MD5 SHA

Which two IPsec protocols are used to provide data integrity? MD5 DH AES SHA RSA

A mobile sales agent is connecting to the company network via the Internet connection at a hotel. An employee who is working from home uses VPN client software on a laptop in order to connect to the company network.

Which two scenarios are examples of remote access VPNs? (Choose two.) All users at a large branch office can access company resources through a single VPN connection. A small branch office with three employees has a Cisco ASA that is used to create a VPN connection to the HQ. A toy manufacturer has a permanent VPN connection to one of its parts suppliers. A mobile sales agent is connecting to the company network via the Internet connection at a hotel. An employee who is working from home uses VPN client software on a laptop in order to connect to the company network.

A virus can be dormant and then activate at a specific time or date. A virus typically requires end-user activation.

Which two statements are characteristics of a virus? (Choose two.) A virus has an enabling vulnerability, a propagation mechanism, and a payload. A virus can be dormant and then activate at a specific time or date. A virus provides the attacker with sensitive data, such as passwords. A virus replicates itself by independently exploiting vulnerabilities in networks. A virus typically requires end-user activation.

the configuration register value the startup configuration file

Which two things should a network administrator modify on a router to perform password recovery? (Choose two.) the system image file the NVRAM file system the configuration register value the startup configuration file system ROM

hello

Which type of OSPF packet is used by a router to discover neighbor routers and establish neighbor adjacency? link-state update hello database description link-state request

CoS

Which type of QoS marking is applied to Ethernet frames? IP precedence DSCP ToS CoS