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NEW QUESTION: 1
A network consists of various remote sites that connect back to two main locations. Pete, the security administrator, needs to block TELNET access into the network. Which of the following, by default, would be the BEST choice to accomplish this goal?
A. Block port 25 on the network firewall
B. Block port 23 on the L2 switch at each remote site
C. Block port 25 on the L2 switch at each remote site
D. Block port 23 on the network firewall
Answer: D
Explanation:
Telnet is a terminal-emulation network application that supports remote connectivity for executing commands and running applications but doesn't support transfer of fi les. Telnet uses TCP port 23. Because it's a clear text protocol and service, it should be avoided and replaced with SSH.
Incorrect Answers:
A, C: L2 switches may interconnect a small number of devices in a home or the office. They are normally used for
LANs.
D. Port 25 is used by Simple Mail Transfer Protocol (SMTP) for e-mail routing between mail servers.
References:
Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, p. 51
http://en.wikipedia.org/wiki/Network_switch#Layer_2
http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
NEW QUESTION: 2
What are the advantages of deploying NetProfiler in your network infrastructure? (Choose five.)
A. Behavior analytics for proactive monitoring.
B. Cost-effective visibility into remote sites by leveraging SteelHead.
C. Ability to automatically create Hostgroups and draw Network Topology, using Netflow.
D. Dependency mapping for an always-accurate view of your applications and their dependencies.
E. Ability for true, end-to-end coverage of the enterprise with dashboard-to-flow-to-packet analysis, providing scalability and flexibility.
F. Executive-level dashboards for a quick summary of service performance.
Answer: A,C,D,E,F
NEW QUESTION: 3
You need to pass a custom script to new Amazon Linux instances created in your Auto Scaling group. Which feature allows you to accomplish this?
A. AWS Config
B. IAM roles
C. EC2Config service
D. User data
Answer: D
NEW QUESTION: 4
After port security is deployed throughout an enterprise campus, the network team has been overwhelmed with port reset requests. They decide to configure the network to automate the process of re-enabling user ports. Which command accomplishes this task?
A. switch(config)# errdisable recovery cause security-violation
B. switch(config)# errdisable recovery cause psecure-violation
C. switch(config)# switchport port-security aging type inactivity
D. switch(config)# errdisable recovery interval 180
E. switch(config)# switchport port-security protect
Answer: B
Explanation:
When a secure port is in the error-disabled state, you can bring it out of this state automatically by configuring the errdisable recovery cause psecure-violation global configuration command or you can manually reenable it by entering the shutdown and no shut down interface configuration commands. This is the default mode. If a port is in per-VLAN errdisable mode, you can also use clear errdisable interface name vlan range command to re-enable the VLAN on the port. You can also customize the time to recover from the specified error disable cause (default is 300 seconds) by entering the errdisable recovery interval interval command.
Reference:http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/122/53SG/configuration/config/port_sec.pdf