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NEW QUESTION: 1
Which of the following is the simplest type of firewall?
A. Application gateway
B. Stateful packet filtering firewall
C. Dual-homed host firewall
D. Packet filtering firewall
Answer: D
Explanation:
A static packet filtering firewall is the simplest and least expensive type of firewalls,
offering minimum security provisions to a low-risk computing environment. A static packet filter firewall examines both the source and destination addresses of the incoming data packet and applies ACL's to them. They operates at either the Network or Transport layer. They are known as the First generation of firewall. Older firewalls that were only packet filters were essentially routing devices that provided access control functionality for host addresses and communication sessions. These devices, also known as stateless inspection firewalls, do not keep track of the state of each flow of traffic that passes though the firewall; this means, for example, that they cannot associate multiple requests within a single session to each other. Packet filtering is at the core of most modern firewalls, but there are few firewalls sold today that only do stateless packet filtering. Unlike more advanced filters, packet filters are not concerned about the content of packets. Their access control functionality is governed by a set of directives referred to as a ruleset. Packet filtering capabilities are built into most operating systems and devices capable of routing; the most common example of a pure packet filtering device is a network router that employs access control lists.
There are many types of Firewall: Application Level Firewalls - Often called a Proxy Server. It works by transferring a copy of each accepted data packet from one network to another. They are known as the Second generation of firewalls. An application-proxy gateway is a feature of advanced firewalls that combines lower-layer access control with upper-layer functionality. These firewalls contain a proxy agent that acts as an intermediary between two hosts that wish to communicate with each other, and never allows a direct connection between them. Each successful connection attempt actually results in the creation of two separate connections-one between the client and the proxy server, and another between the proxy server and the true destination. The proxy is meant to be transparent to the two hosts-from their perspectives there is a direct connection. Because external hosts only communicate with the proxy agent, internal IP addresses are not visible to the outside world. The proxy agent interfaces directly with the firewall ruleset to determine whether a given instance of network traffic should be allowed to transit the firewall. Stateful Inspection Firewall - Packets are captured by the inspection engine operating at the network layer and then analyzed at all layers. They are known as the Third generation of firewalls. Stateful inspection improves on the functions of packet filters by tracking the state of connections and blocking packets that deviate from the expected state. This is accomplished by incorporating greater awareness of the transport layer. As with packet filtering, stateful inspection intercepts packets at the network layer and inspects them to see if they are permitted by an existing firewall rule, but unlike packet filtering, stateful inspection keeps track of each connection in a state table. While the details of state table entries vary by firewall product, they typically include source IP address, destination IP address, port numbers, and connection state information. Web Application Firewalls - The HTTP protocol used in web servers has been exploited by attackers in many ways, such as to place malicious software on the computer of someone browsing the web, or to fool a person into revealing private information that they might not have
otherwise. Many of these exploits can be detected by specialized application firewalls called web
application firewalls that reside in front of the web server.
Web application firewalls are a relatively new technology, as compared to other firewall
technologies, and the type of threats that they mitigate are still changing frequently. Because they
are put in front of web servers to prevent attacks on the server, they are often considered to be
very different than traditional firewalls.
Host-Based Firewalls and Personal Firewalls - Host-based firewalls for servers and personal
firewalls for desktop and laptop personal computers (PC) provide an additional layer of security
against network-based attacks. These firewalls are software-based, residing on the hosts they are
protecting-each monitors and controls the incoming and outgoing network traffic for a single host.
They can provide more granular protection than network firewalls to meet the needs of specific
hosts.
Host-based firewalls are available as part of server operating systems such as Linux, Windows,
Solaris, BSD, and Mac OS X Server, and they can also be installed as third-party add-ons.
Configuring a host-based firewall to allow only necessary traffic to the server provides protection
against malicious activity from all hosts, including those on the same subnet or on other internal
subnets not separated by a network firewall. Limiting outgoing traffic from a server may also be
helpful in preventing certain malware that infects a host from spreading to other hosts.11 Host-
based firewalls usually perform logging, and can often be configured to perform address-based
and application-based access controls
Dynamic Packet Filtering - Makes informed decisions on the ACL's to apply. They are known as
the Fourth generation of firewalls.
Kernel Proxy - Very specialized architecture that provides modular kernel-based, multi-layer
evaluation and runs in the NT executive space. They are known as the Fifth generation of
firewalls.
The following were incorrect answers:
All of the other types of firewalls listed are more complex than the Packet Filtering Firewall.
Reference(s) used for this question:
HARRIS, Shon, All-In-One CISSP Certification Exam Guide, 6th Edition, Telecommunications and
Network Security, Page 630.
and
NIST Guidelines on Firewalls and Firewalls policies, Special Publication 800-4 Revision 1

NEW QUESTION: 2
Existing Environment
Current Environment
Proseware has an Enterprise Agreement (EA) that includes Microsoft Office Professional Plus, Microsoft Core Cal Suite, and Windows 10 Enterprise.
The company's on-premises datacenter contains servers that run Windows Server Datacenter to support unlimited virtualization. Windows Server was purchased as an additional product through the EA. The company has a total of 160 Windows Server Datacenter core licenses.
Problem statements
Proseware identifies the following issues:
The hardware and supporting infrastructure of the on-premises datacenter is outdated.

The most experienced employees in the IT department are retired and the company fails to replace

them with qualified candidates.
Requirements
Business Goals
Proseware has the following business goals:
Use the latest technologies and products.

Ensure that all new purchases have price protection for three years.

Update the infrastructure without a large upfront investment and without tying up capital.

Outsource the management of and global migration strategy for online services while minimizing costs.

Maintain the on-premises datacenter while reducing the number of IT employees required to support it.

Leverage the existing investment in on-premises products to reduce the overall cost of online services.

Provide a modern work environment for the development engineers to work remotely and on any

device while protecting the company's intellectual property.
Planned Changes
Proseware plans to implement the following changes:
When the current EA expires, move to equivalent Microsoft Online Services that have the highest

security standards for all workloads.
Obtain a management tool for the on-premises servers.

Which licensing option should you recommend to support the planned changes to the on-premises datacenter?
A. Microsoft System Center 2016 Datacenter
B. Microsoft System Center Endpoint Protection
C. Microsoft System Center Configuration Manager
D. Microsoft System Center 2016 Standard
Answer: A
Explanation:
Explanation/Reference:
References: https://www.microsoft.com/en-us/licensing/product-licensing/system-center-2016.aspx

NEW QUESTION: 3
During an office move a sever containing the employee information database will be shut down and transported to a new location. Which of the following would BEST ensure the availability of the employee database should happen to the server during the move?
A. A hash of the database should be taken and stored on an external drive prior to the move
B. A backup of the database should be stored on an external hard drive prior to the move
C. The contents of the database should be encrypted; the encryption key should be stored off-site
D. The database should be placed on a drive that consists of a RAID array prior to the move
Answer: B

NEW QUESTION: 4
You need to recommend changes to the ERP application to resolve the search issue. The solution must minimize the impact on other queries generated from the ERP application.
What should you recommend changing?
A. The collation of the ProductName column
B. The index on the ProductName column
C. The collation of the Products table
D. The data type of the ProductName column
Answer: A
Explanation:
Reference:
http://technet.microsoft.com/en-us/library/aa214408(v=sql.80).aspx
Topic 3, Fabrikam, Inc
Background
Corporate Information
Fabrikam, Inc. is a retailer that sells electronics products on the Internet. The company has a headquarters site and one satellite sales office.
You have been hired as the database administrator, and the company wants you to change the architecture of the Fabrikam ecommerce site to optimize performance and reduce downtime while keeping capital expenditures to a minimum. To help with the solution, Fabrikam has decided to use cloud resources as well as on-premise servers.
Physical Locations
All of the corporate executives, product managers, and support staff are stationed at the headquarters office. Half of the sales force works at this location.
There is also a satellite sales office. The other half of the sales force works at the satellite office in order to have sales people closer to clients in that area. Only sales people work at the satellite location.
Problem Statement
To be successful, Fabrikam needs a website that is fast and has a high degree of system uptime. The current system operates on a single server and the company is not happy with the single point of failure this presents. The current nightly backups have been failing due to insufficient space on the available drives and manual drive cleanup often needing to happen to get past the errors. Additional space will not be made available for backups on the HQ or satellite servers. During your investigation, you discover that the sales force reports are causing significant contention.
Configuration
Windows Logins
The network administrators have set up Windows groups to make it easier to manage security. Users may belong to more than one group depending on their role.
The groups have been set up as shown in the following table:

Server Configuration
The IT department has configured two physical servers with Microsoft Windows Server 2012 R2 and SQL Server 2014 Enterprise Edition and one Windows Azure Server. There are two tiers of storage available for use by database files only a fast tier and a slower tier.
Currently the data and log files are stored on the fast tier of storage only. If a possible use case exists, management would like to utilize the slower tier storage for data files.
The servers are configured as shown in the following table:

Database
Currently all information is stored in a single database called ProdDB, created with the following script:

The Product table is in the Production schema owned by the ProductionStaff Windows group. It is the main table in the system so access to information in the Product table should be as fast as possible.
The columns in the Product table are defined as shown in the following table:

The SalesOrderDetail table holds the details about each sale. It is in the Sales schema
owned by the SalesStaff Windows group.
This table is constantly being updated, inserted into, and read.
The columns in the SalesOrderDetail table are defined as shown in the following table:

Database Issues
The current database does not perform well. Additionally, a recent disk problem caused the system to go down, resulting in lost sales revenue. In reviewing the current system, you found that there are no automated maintenance procedures. The database is severely fragmented, and everyone has read and write access.
Requirements
Database
The database should be configured to maximize uptime and to ensure that very little data is lost in the event of a server failure. To help with performance, the database needs to be modified so that it can support in-memory data, specifically for the Product table, which the CIO has indicated should be a memory-optimized table. The auto-update statistics option is set off on this database.
Only product managers are allowed to add products or to make changes to the name, description, price, cost, and supplier. The changes are made in an internal database and pushed to the Product table in ProdDB during system maintenance time. Product managers and others working at the headquarters location also should be able to generate reports that include supplier and cost information.
Customer data access
Customers access the company's website to order products, so they must be able to read product information such as name, description, and price from the Product table. When customers place orders, stored procedures called by the website update product quantity-on-hand values. This means the product table is constantly updated at random times.
Customer support data access
Customer support representatives need to be able to view and not update or change product information. Management does not want the customer support representatives to be able to see the product cost or any supplier information.
Sales force data access
Sales people at both the headquarters office and the satellite office must generate reports that read from the Product and SalesOrderDetail tables. No updates or inserts are ever made by sales people. These reports are run at random times and there can be no reporting downtime to refresh the data set except during the monthly maintenance window. The reports that run from the satellite office are process intensive queries with large data sets. Regardless of which office runs a sales force report, the SalesOrderDetail table should only return valid, committed order data; any orders not yet committed should be ignored.
Historical Data
The system should keep historical information about customers who access the site so that sales people can see how frequently customers log in and how long they stay on the site. The information should be stored in a table called Customer Access. Supporting this requirement should have minimal impact on production website performance.
Backups
The recovery strategy for Fabrikam needs to include the ability to do point in time restores and minimize the risk of data loss by performing transaction log backups every 15 minutes.
Database Maintenance
The company has defined a maintenance window every month when the server can be unavailable. Any maintenance functions that require exclusive access should be accomplished during that window.
Project milestones completed
- Revoked all existing read and write access to the database, leaving the schema
ownership in place.
- Configured an Azure storage container secured with the storage account name
MyStorageAccount with the primary access key StorageAccountKey on the cloud
file server.
- SQL Server 2014 has been configured on the satellite server and is ready for use.
- On each database server, the fast storage has been assigned to drive letter F:,
and the slow storage has been assigned to drive letter D:.