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Wednesday, January 1, 2020

Which QOS Protocols are valid for traffic marking?

Which QOS Protocols are valid for traffic marking?

  • SRR-QUEUE, WRR-QUEUE
  • IGMP, MLS QOS
  • MLS QOS, GRE, VRRP
  • DSCP, COS, TOS 

Which QOS Protocols are valid for traffic marking?

EXPLANATION

Class of Services, Diffserv Code Point, Type of Service
Command Used in Policy Maps Maps These Attributes
set cos dscp table table-map-name CoS to DSCP
set cos precedence table table-map-name CoS to Precedence
set dscp cos table table-map-name DSCP to CoS
set dscp qos-group table table-map-name DSCP to qos-group
set mpls experimental imposition dscp table table-map-name MPLS EXP imposition to DSCP
set mpls experimental imposition precedence table table-map-name MPLS EXP imposition to precedence
set mpls experimental topmost qos-group table table-map-name MPLS EXP topmost to QoS-group
set precedence cos table table-map-name Precedence to CoS
set precedence qos-group table table-map-name Precedence to QoS-group
set qos-group dscp table table-map-name QoS-group to DSCP
set qos-group mpls exp topmost table table-map-name QoS-group to MPLS EXP topmost
set qos-group precedence table table-map-name QoS-group to Precedence

SOURCE

https://en.wikipedia.org/wiki/Quality_of_service

 

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What is the default TCP port used by ORACLE SQL Developer

What is the default TCP port used by ORACLE SQL Developer

  • 3389
  • 8080
  • 1521
  • 1433 

What is the default TCP port used by ORACLE SQL Developer

EXPLANATION

4. Provide information for the following settings:

Role: This is the set of privileges to be associated with the connection. Accept default for this connection.OS Authentication: Leave this unchecked for this connection.Proxy Connection: Leave this unchecked for this connection.Hostname: This is the host system for the Oracle Database instance. Enter an IP address, a machine name, or localhost (when connecting to a database on the same machine as Oracle SQL Developer).
The default is localhost .Port: This is the listener port for the database. The default port for Oracle Database is 1521.SID: This is the system identifier, such as orcl (the default for Oracle Database 10g and Oracle Database 11g) or xe (the default for Oracle Database 10g Express Edition).Service name: This is the network service name of the database. Select either SID or Service name.

SOURCE

http://www.oracle.com/technetwork/issue-archive/2008/08-may/o38sql-102034.html

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Monday, December 30, 2019

The term “ping” is short for:

The term “ping” is short for:

  • Packet Information Generator
  • Packet Tracking
  • Process-Improvement Networking Group
  • Packet Internet Groper 

EXPLANATION

It is often believed that "Ping" is an abbreviation for Packet Internet Groper, but Ping's author has stated that the names comes from the sound that a sonar makes.

 


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In threat hunting, what China based APT group was exposed and dismantled by U.S. based security organization Mandiant?

In threat hunting, what China based APT group was exposed and dismantled by U.S. based security organization Mandiant?

  • APT 3
  • APT18
  • APT 1
  • APT 12 

EXPLANATION

2004, Mandiant has investigated computer security breaches at hundreds of organizations around the world. The majority of these security breaches are attributed to advanced threat actors referred to as the “Advanced Persistent Threat” (APT). We first published details about the APT in our January 2010 M-Trends report. As we stated in the report, our position was that “The Chinese government may authorize this activity, but there’s no way to determine the extent of its involvement.” Now, three years later, we have the evidence required to change our assessment. The details we have analyzed during hundreds of investigations convince us that the groups conducting these activities are based primarily in China and that the Chinese Government is aware of them.3Mandiant continues to track dozens of APT groups around the world; however, this report is focused on the most prolific of these groups. We refer to this group as “APT1” and it is one of more than 20 APT groups with origins in China. APT1 is a single organization of operators that has conducted a cyber espionage campaign against a broad range of victims since at least 2006. From our observations, it is one of the most prolific cyber espionage groups in terms of the sheer quantity of information stolen. The scale and impact of APT1’s operations compelled us to write this report.The activity we have directly observed likely represents only a small fraction of the cyber espionage that APT1 has conducted. Though our visibility of APT1’s activities is incomplete, we have analyzed the group’s intrusions against nearly 150 victims over seven years. From our unique vantage point responding to victims, we tracked APT1 back to four large networks in Shanghai, two of which are allocated directly to the Pudong New Area. We uncovered a substantial amount of APT1’s attack infrastructure, command and control, and modus operandi (tools, tactics, and procedures). In an effort to underscore there are actual individuals behind the keyboard, Mandiant is revealing three personas we have attributed to APT1. These operators, like soldiers, may merely be following orders given to them by others.Our analysis has led us to conclude that APT1 is likely government-sponsored and one of the most persistent of China’s cyber threat actors. We believe that APT1 is able to wage such a long-running and extensive cyber espionage campaign in large part because it receives direct government support. In seeking to identify the organization behind this activity, our research found that People’s Liberation Army (PLA’s) Unit 61398 is similar to APT1 in its mission, capabilities, and resources. PLA Unit 61398 is also located in precisely the same area from which APT1 activity appears to origina
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What allows you to move the cursor on a screen?

What allows you to move the cursor on a screen?

  • This one time, at band camp
  • Mouse
  • A series of well organised sausagerolls performing a electronic coup
  • The feeling when you just know youve forgotten something but cant remember what. 

EXPLANATION

If your machine is equipped with arrow keys, try these now. You should be able to move the cursor freely about the screen by using combinations of the up, down, right, and left arrow keys.
...
Moving With Arrow Keys
  • To move left, press h .
  • To move right, press l .
  • To move down, press j .
  • To move up, press k .
 he cursor?


You can simply press Shift-right-arrow, and then start typing. In contrast, to these combination shift-arrow commands which move the cursor to the beginning and end of lines, the Ctrl-left-arrow and Ctrl-right-arrow keys move the screen image 20 spaces in the opposite direction to the arrow, without moving the cursor.

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