Which are three reasons that an organization with multiple branch offices and roaming users might implement a Cisco VPN solution instead of point-to-point WAN links？（）

A . architectures that is inflexible and inefficient B . desire to use the same vender for desktop and server deployments C . selecting best-performing vendors for each individual component D . existing equipment has reached and of life E . increasing operational costs of managing data centers F . demand among users for access to information anytime, anywhere

A . Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted  with Time to Live （TTL） greater than 1. B . Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers. C . Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link-local addresses used by PIMv2 and  IGMPv3. D . Because they would map to overlapping IP multicast MAC addresses， multicast addresses 224.0.1.1  and 238.1.1.1 could not be used together. E . Multicast address 224.0.1.1 has been reserved for the Network Time Protocol （NTP） by the IANA F . The administratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in  purpose to RFC 1918 private unicast addresses.

A . to make VTP easier to implement B . to isolate broadcast traffic C . to increase the size of the collision domain D . to allow more devices to connect to the network E . to logically group hosts according to function F . to increase network security

A . to make VTP easier to implement B . to isolate broadcast traffic C . to increase the size of the collision domain D . to allow more devices to connect to the network E . to logically group hosts according to function F . to increase network security

A . Allows the transportation of all forms of traffic B . Multiplexing is easy C . Clocks do not need to be synchronized D . Reduces network complexity and cost E . Padding is not necessary and not permitted

A . A final method in class X can be abstract if and only if X is abstract. B . A protected method in class X can be overridden by any subclass of X. C . A private static method can be called only within other static methods in class X. D . A non-static public final method in class X can be overridden in any subclass of X. E . A public static method in class X can be called by a subclass of X without explicitly referencing the class X. F . A method with the same signature as a private final method in class X can be implemented in a subclass of X. G . A protected method in class X can be overridden by a subclass of X only if the subclass is in the same package as X.

A . cloud computing B . consumerization C . collaboration D . virtualization E . digital media F . borderless network

A . To identify applications causing congestion B . To authorize user network access C . To report and alert link up / down instances. D . To diagnose slow network performance, bandwidth hogs, and bandwidth utilization. E . To detect suboptimal routing in the network. F . To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service.

A . A user cannot set privileges on the persistent lightweight jobs B . Persistent lightweight jobs generate a large amount of metadata C . It is possible to create fully self-contained persistent lightweight jobs D . The use of a template is mandatory to create persistent lightweight jobs E . Persistent lightweight jobs are useful when users need to create a large number of jobs in a short time

A .  The default constructor initializes method variables. B .  The default constructor has the same access as its class. C .  The default constructor invoked the no-arg constructor of the superclass. D .  If a class lacks a no-arg constructor， the compiler always creates a default constructor.  E .  The compiler creates a default constructor only when there are no other constructors for the class.

A . the use of hosted email services eliminating the need for local security B . the perceived costs of security solutions C . the lack of risk analysis D . the lack of threats to their network E . the belief that free security tools are sufficient F . the desire to avoid unnecessary technologie

A . It has the same maximum hop count as version 1. B . It uses broadcasts for its routing updates. C . It is a classless routing protocol. D . It has a lower default administrative distance than RIP version 1. E . It supports authentication. F . It does not send the subnet mask in updates.

A . A MERGE statement is used to merge the data of one table with data from another. B . A MERGE statement replaces the data of one table with that of another. C . A MERGE statement can be used to insert new rows into a table. D . A MERGE statement can be used to update existing rows in a table.

A . Send B . Raise C . Delete D . Receive E . Acknowledge

A . Incorrect VPI and VCI configuration B . Noise， gain hits， or other transmission problems on the data link equipment C . ATM cells are dropped due to incorrect ATM routing in the service provider. D . A faulty or failing ATM interface. E . Cells are dropped due to traffic policing in the ATM cloud on one or more virtual circuits attached to theATM interface

A . to make VTP easier to implement B . to isolate broadcast traffic C . to increase the size of the collision domain D . to allow more devices to connect to the network E . to logically group hosts according to function F . to increase network security

A .  A lightweight AP receives control and configuration from a WLAN controller to which it is associated. B .  A WLAN client that is operating in half-duplex mode will delay all clients in that WLAN C .  A dhoc mode allows mobile clients to connect directly without an intermediate AP D .  Another term for infrastructure mode is independent service set （IBSS） E .  The Aironet 1230 access point is an example of an access point that operates solely as a lightweight  access point. F .  WLANs are designed to share the medium and can easily handle an increased demand of channel  contention.

A . demand among users for access to information anytime, anywhere B . desire to use the same vender for desktop and server deployments C . existing equipment has reached and of life D . increasing operational costs of managing data centers E . architectures that is inflexible and inefficient F . selecting best-performing vendors for each individual component

A . Cisco Express Forwarding （CEF） must be enabled as a prerequisite to running MPLS on a Cisco router. B . Frame-mode MPLS inserts a 32-bit label between the Layer 3 and Layer 4 headers. C . MPLS is designed for use with frame-based Layer 2 encapsulation protocols such as Frame Relay， but is not supported by ATM because of ATM fixed-length cells. D . OSPF， EIGRP， IS-IS， RIP， and BGP can be used in the control plane. E . The control plane is responsible for forwarding packets. F . The two major components of MPLS include the control plane and the data plane.

A. to make VTP easier to implement B. to isolate broadcast traffic C. to increase the size of the collision domain D. to allow more devices to connect to the network E. to logically group hosts according to function F. to increase network security